Breakthroughs Blog: CDC

2025 has been a whirlwind year for global health. In the United States, we've seen the integration of the US Agency for International Development (USAID) into the Department of State, transformation at the Department of Health and Human Services (HHS), and a complicated and prolonged budget process. Globally, we've seen setbacks and progress in HIV and malaria, an evolution at the World Health Organization (WHO), a multilateral win with the Pandemic Agreement adoption, and African partners stepping up to boost autonomy.As the year draws to a close, GHTC is reflecting on the innovations, policy shifts, and pivotal moments that defined 2025 and what they signal for the years to come.US global health leadership in transitionOn day one of his second term, President Donald Trump initiated an effort to realign US foreign assistance programs with the goal of making America safer, stronger, and more prosperous. This effort started with an overhaul of USAID, triggering a series of layoffs, stop-work orders that turned into award terminations, and withdrawals from multilateral partnerships, culminating in the agency’s official integration into the State Department on July 1.While this suspension and termination of USAID programs disrupted critical research projects and health services worldwide earlier this year, in September, the State Department unveiled the America First Global Health Strategy, which outlines a plan to reshape the US government’s global health programming, presenting opportunities for global health research and development (R&D).The new strategy centers multiyear bilateral agreements with countries while reducing ties with nongovernmental organizations and narrowing health focal areas. While critical questions remain on implementation—including on whether the agency still retains needed expertise and how it will coordinate with interagency technical partners like the US Centers for Disease Control and Prevention (CDC)—the strategy’s focus on integrating aid more directly into national health systems is a step forward in improving sustainability and self-reliance. The strategy also raises the exciting possibility that funds could be used to support “innovative, breakthrough technologies.”  Building on USAID’s successes and shortcomings in that space, the department has a clear opportunity to establish a centralized R&D fund—in complement to bilateral agreements—to invest in innovative tools that could leapfrog global health progress. Through collaboration with global health stakeholders and interagency partners, State could reshape US global health programs to continue to save lives; foster funding beyond US government resources, including through partner nations; and promote shared security and prosperity.Overhaul of US scientific and public health infrastructureThe United States has long been a leader in global health R&D and science more broadly, with American researchers, universities, companies, and patients benefiting. In 2025, sweeping changes at HHS reshaped America’s public health and research infrastructure. These far-reaching reforms aimed to advance administration priorities of promoting “gold standard science,” improving efficiency, transparency, and oversight and realigning investments to match administration objectives. At the National Institutes of Health (NIH) and CDC, these changes have included significant staff departures, among them seasoned leaders, and the appointment of many officials who were previously critics of these agencies. It has also included new policies to overhaul oversight of foreign awards and cap indirect costs, changes to longstanding vaccine guidance, and the terminations of numerous awards, including a wind-down of mRNA vaccine development activities. The speed and scale of these changes have raised concerns across the biomedical research and public health communities. While thoughtful reforms could yield benefits, experts warn that current actions risk driving US scientists abroad, disrupting promising clinical trials, weakening the pipeline of new tools, eroding trust in public health guidance, and weakening the structures that have sustained US scientific leadership. US budget swings and shutdowns2025 began with a race to fund the government, with President Trump signing the fiscal year 2025 budget into law in mid-March. While the budget maintained global health R&D-relevant funding lines at prior levels, it funded a government that now looked significantly different after sweeping layoffs and restructuring. Months later, the administration issued its budget request, proposing significant cuts and a restructuring of global health and research programs, reflecting far-reaching changes it had already begun to enact.In June, the administration proposed a request to rescind billions in funding for foreign aid. Though Senators stepped in to remove cuts to global programs for HIV/AIDS and several other health areas, the package ultimately became law, cancelling $500 million in previously appropriated global health funds and raising the possibility that this administration will continue to use rescissions as a tool to withdraw funding.  By late summer, Senate and House appropriators advanced interim funding bills that included higher-than-expected funding for global health and medical research, maintaining funding proposed for elimination by the administration. But then stalled negotiations triggered the longest-ever government shutdown, during which the administration implemented unprecedented furloughs and layoffs that affected critical staff at public health and health research agencies.While the shutdown ended on November 12, pushing the funding fight until January, and most associated layoffs were reversed, uncertainty about future funding for global health R&D persists, especially with a deeply divided Congress and the potential of further recissions.A year of setbacks and breakthroughs in HIV and malaria effortsGlobal HIV/AIDS and malaria efforts faced major setbacks in 2025 as declining US and international donor support has threatened decades of hard-fought progress. Funding cuts could lead to millions of additional HIV and malaria cases in the coming years and has already stalled promising research advancing new HIV and malaria tools.Amid these challenges, the June approval by the US Food and Drug Administration of lenacapavir, a twice-yearly injectable drug for HIV prevention, marked a major milestone and a reminder of the incredible progress possible through strong support for research. Developed by Gilead and supported by NIH-backed research, the drug offers an alternative to daily pills or bi-monthly injections, making prevention more accessible and easier to maintain. Global partners are stepping up to expand access, and Phase 3 trials of a once-yearly version are planned.In November, Medicines for Malaria Venture and Novartis shared Phase 3 trial results for GanLum, a new drug found to be highly effective at treating malaria, including drug-resistant cases, and capable of blocking disease transmission. Pending approval, it could help counter rising resistance to current treatments.Other notable R&D advances in 2025 also targeted the growing threat of antimicrobial resistance, including a Phase 3 trial for a novel antibiotic targeting a dangerous antibiotic-resistant pathogen, support for what could be the first-ever vaccine for Escherichia coli, and efforts to harness artificial intelligence to transform antibiotic discovery. These breakthroughs underscore the importance of sustained R&D investment and the efforts to ensure new tools reach those who need them.WHO restructures amid budget shortfallFacing a severe budget crisis and pressure from member states to reprioritize programs, WHO launched a sweeping overhaul in 2025, cutting staff, slashing its budget, and reorganizing core functions. At its February Executive Board meeting, member states approved a $1.1 billion budget reduction, leaving a remaining $1.7 billion shortfall for 2026 and 2027, despite a recent increase to membership dues and appeals for voluntary contributions.In late April, WHO announced a plan to halve its senior leadership team and consolidate departments. Infectious disease and climate and health programs remain relatively well-resourced, and merging several disease-specific initiatives into a new division could strengthen certain programs. However, neglected tropical diseases and health emergency preparedness and response programs face sharp cuts, while reductions in regional and in-house expert posts may weaken global lab and surveillance networks and delay critical guidance, raising concerns about WHO’s outbreak response capacity.One core R&D function spared from the worst cuts was WHO’s prequalification (PQ) program, which evaluates medical products to support regulatory approval and rollout in countries with less advanced regulatory authorities. The program has marked some important achievements this year, launching a new portal to improve transparency for developers, introducing a new streamlined review and guidance process for TB diagnostics, and prequalifying lenacapavir for HIV prevention through a compressed process completed in just 36 days. As WHO and the broader United Nations system grapple with financial strain and diminished donor support, questions remain about the capacity to deliver on their mandate. A major outbreak could test the limits of this leaner system.Pandemic Agreement provides hope in challenging year for multilateralismAt the World Health Assembly in May, delegates adopted the Pandemic Agreement, a milestone win for global health after three years of complex negotiations. However, consensus on a pathogen and access-benefit sharing system was not reached, requiring member states to return to the negotiating table to finalize an annex for adoption at next year’s assembly. Persistent disputes over the voluntary or legally binding nature of participation signal tough negotiations ahead.While the Pandemic Agreement is a huge win, pushback from key countries and declining pandemic preparedness investments raise concerns about global readiness. Annex negotiations and the 2026 United Nations High-Level Meeting on Pandemic Prevention, Preparedness, and Response will further test international unity on this crucial topic.Meanwhile, 2026 brought notable R&D advances to strengthen our defenses against pandemic threats. The Coalition for Epidemic Preparedness Innovations launched the first-ever adjuvant library of 25 immune-boosting substances to improve vaccine effectiveness and awarded $17.3 million for Phase 2 trials of a promising Nipah vaccine, among the first candidates targeting the priority virus to reach this critical stage. IAVI’s vaccine candidate for Lassa virus, another virus with pandemic potential, was also found to be safe and effective in a first-in-human Phase 1 trial, marking further R&D progress against concerning disease threats.Partners step up to fill gaps and boost autonomyAmid steep foreign aid funding losses, African nations are accelerating efforts to boost manufacturing and laboratory capacity on the continent and reduce reliance on external partners. At October’s Conference on Public Health in Africa in Durban, South Africa, thousands of participants endorsed The Durban Promise, a roadmap for Africa’s health sovereignty, urging action on manufacturing, financing, workforce and capacity development, and regulatory strengthening, a signal of growing continental unity.This momentum was echoed by the Accra Reset, led by Ghanaian President John Mahama, to forge further progress toward greater sovereignty and more equitable global cooperation. At the continental level, the Africa Centres for Disease Control and Prevention launched a new biomanufacturing fellowship to help meet the goal of producing 60 percent of Africa’s vaccine dose needs locally by 2040.South Africa held the G20 presidency this year, culminating in the first G20 summit held on African soil and a declaration focused on priorities for Africa and the Global South. The summit was punctuated by the absence of the United States, underscoring the imperative for greater African autonomy as international aid declines and health threats rise. With the United States assuming the G20 presidency next year, its priorities will be closely watched. Looking ahead to 2026If 2025 has taught us anything, it’s that global health is unpredictable and constantly evolving, so we won’t speculate on exactly what 2026 may bring. But a truth remains clear: global health R&D is a strong investment that pays off—saving lives, strengthening economies, and fueling scientific progress. As the United States redefines its approach and role in the broader global health ecosystem, it remains to be seen how it, and others, will step up to ensure that promising technologies in the pipeline are advanced to improve lives around the world.For other fascinating global health news delivered to your inbox weekly and to stay abreast of developments in 2026 and beyond, sign up now to receive GHTC’s R&D News Roundup newsletter.

Over the past century, partnerships between the US government and scientists have led to major breakthroughs in global health research and development (R&D). Consistent US government funding, combined with the nation’s strong research universities and entrepreneurial spirit, has positioned America as a world leader. This investment has paid off in both health and economic gains. However, that foundation has recently weakened, as US government actions have sharply reduced research spending and limited global health research collaborations. These changes risk driving US researchers abroad and eroding the very strengths that made the United States such a scientific powerhouse. The result could be fewer breakthroughs, fewer economic benefits, and a costly brain drain for our nation. How we got here America’s global health research leadership is built on the backbone of decades of government investment by agencies like the National Institutes of Health (NIH), the Biomedical Advanced Research and Development Authority (BARDA), the Centers for Disease Control and Prevention, and the US Agency for International Development (USAID). This support built a top-tier talent pool at home and drew innovators from abroad—giving the United States a strong competitive advantage. That advantage is now in jeopardy. Recent policy and budget decisions have led to the termination of thousands of NIH grants, the wind-down of BARDA’s mRNA vaccine work, the closure of USAID and near-total cancellation of its health R&D awards, and the loss of more than 20,000 jobs at the Department of Health and Human Services. More cuts and restructuring are proposed.New federal rules are also disrupting universities—the backbone of US biomedical research. To stay eligible for federal funding, institutions must meet shifting requirements, adding costs and uncertainty. At the same time, new NIH policies have restricted international partnerships and broadly limited "dangerous gain-of-function research,” including studies that leading experts consider to be safe. Research on infectious diseases like tuberculosis has been disrupted as a result.  Funding for training young scientists is also falling. NIH’s main program for supporting early-career researchers saw its grant spending drop from $2.2 billion in 2024 to $1.7 billion in 2025. Without reliable support, many students and junior researchers may take their talents abroad—or abandon their field altogether. The international response In the wake of these changes, other countries are moving quickly to recruit US researchers.  In May, the European Union pledged $567 million over three years to “make Europe a magnet for researchers.” Similarly, the Netherlands launched a new fund to attract top international scientists, and Norway unveiled a £7.2 million program to recruit researchers. The head of Norway’s Research Council pointed to the pressure US researchers are facing on academic freedom as part of its rationale.  Individual universities are also joining in. Aix-Marseille University in France launched its Safe Place for Science program to attract US scientists who may “feel threatened or hindered in their research.” The Free University Brussels created a dedicated point of contact for US researchers interesting in continuing their work in Belgium. The message from abroad is clear: America’s loss can be their gain. So what?As the US retreats, the center of gravity for biomedical research may shift overseas. Data from Nature’s jobs board shows that in the first few months of the current administration, US job-seekers applying abroad rose sharply: 41 percent more to Canada, 32 percent to Europe, 20 percent to China, and 39 percent to other Asian countries compared to the same period in 2024.  Early-career researchers are being hit hardest. At the most innovative and impactful stage of their careers, opportunities are disappearing. Many have been left jobless or unsure if they have a future in their field. The US economy is also at stake. In 2024, NIH-funded research supported more than 400,000 jobs across all 50 states and generated $94.60 billion in economic activity—a return of $2.56 for every dollar spent. Reductions in US spending could shift those economic benefits to other countries. And since no other nation has the resources to fully replace the US’s historic role, we could see fewer medical breakthroughs for the world overall. Without strong and predictable federal research support, the United States risks losing its place as a top engine of global biomedical progress. Young researchers see more uncertainty than opportunity, and other nations are investing heavily to take the lead, accelerating a US brain drain. If US policymakers do not act to restore the foundational factors that rooted American scientific leadership, the future of science may unfold elsewhere—and the next generation of discoveries may not be American-led.  

On Thursday, Senate appropriators advanced out of committee a fiscal year (FY) 2026 spending bill for the Department of Health and Human Services (HHS) that rejects billions in health spending cuts proposed by the Trump Administration and protects programs vital to global health innovation.The bill increases or flat-funds global health research-relevant agencies, including the National Institutes of Health (NIH) and Biomedical Advanced Research and Development Authority (BARDA), and slightly reduces funding for the US Centers for Disease Control and Prevention (CDC) compared to FY25 enacted—an outcome that is in stark contrast to the President’s Budget Request (PBR), which proposed deep cuts across all three. Funding at this level will enable these agencies to continue to advance medical breakthroughs and operate programs that deliver better health outcomes for people around the world and fortify our defenses against disease threats.Funding highlightsThe legislation allocates $48.7 billion in funding for NIH, which is a $400 million (.8 percent) increase compared to FY25 enacted and nearly $22.2 billion (77 percent) above the PBR, and $1.015 billion for BARDA, which represents level funding from FY25 but $361 million (55 percent) more than the White House request. While the legislation unfortunately cuts funding for CDC by $72 million, or 1 percent, this allocation is $4.8 billion or 112 percent greater than the President’s request.While advocates expected the Senate to reject the steep cuts proposed by the Trump Administration, many still anticipated significant reductions. It is therefore both welcome and surprising that Senate appropriators advanced a spending package that maintains strong funding for many programs the President aimed to slash or eliminate.Beyond topline funding for agencies, the bill and accompanying report also diverge from the PBR in other crucial ways. While the President proposed eliminating the CDC Global Health Center (GHC), this spending bill keeps the center intact, maintaining level funding from FY25. The bill also maintains flat funding for the NIH Fogarty International Center—which supports global health research partnerships and training—and provides a 0.5 percent increase to the NIH’s National Institute of Allergy and Infectious Diseases (NIAID). This stands in sharp contrast to the White House’s proposal to eliminate Fogarty entirely and cut NIAID’s budget by 58 percent. Additionally, it provides level funding to the Advanced Research Projects Agency for Health (ARPA-H), a new agency established under the Biden Administration to support high-risk, high-potential health research, rejecting the President’s proposal to reduce its funding by $555 million.Beyond  funding numbers, the bill’s accompanying report includes welcome directives affirming the Senate’s support for research activities critical to global health, including across health areas like neglected tropical diseases, malaria, tuberculosis, emerging infectious diseases, antimicrobial resistance (AMR), and more, and underscores the importance of international health research partnerships and training programs supported by the Fogarty International Center and global health activities undertaken by CDC GHC and NCEZID.  Taken together, the funding and directives can be viewed as a strong rebuke of the president’s efforts to downsize and dismantle US global health efforts and a strong affirmation of the Senate’s support for programs that save and improve lives around the world and protect Americans from disease threats. The report also dictates stricter reporting requirements to Congress for HHS, indicating bipartisan concern by lawmakers as to whether the agency is dispersing funding as directed and making scientifically-drive decisions.The report also conveys Senate appropriators’ desire to see BARDA devote robust funding to developing countermeasures against emerging infectious diseases, AMR, and pandemic influenza, and directs BARDA to spend no less than $10 million on advancing countermeasures against “Disease X,” which is a term to denote priority viral pathogens that could cause the next pandemic. Despite an overall positive picture, the bill does include some decreases to subaccounts relevant to global health, including an 80 percent cut to  the CDC-wide Infectious Disease Rapid Response Fund, which was a fund originally created to provide flexible funds for the agency to rapidly respond to pandemic and epidemic threats. See the chart below for a more detailed comparison of funding in the Senate bill and percent changes compared to FY25 enacted and the PBR.What comes nextThe bill’s passage out of committee is just an initial step in a lengthy political process. It will next go to the full Senate for a vote, the House of Representatives will need to advance its parallel bill, and then the two bills will need to be conferenced to work out their differences before going back to both chambers for a vote and then to the President for signature.It is anticipated that the House will propose lower spending levels for health programs than the Senate, so these numbers are a likely high watermark where negotiations begin between the two chambers. Nonetheless, if one reads the House’s spending bill on global health as a tea leaf of what’s to come, it’s unlikely the House will cut as deep as the President wishes , so if the two chambers can reach a compromise and pass a budget, we could see funding levels land somewhere below the Senate but still substantially above the PBR. In the House bill, we are likely to see stronger relative numbers for NIH over CDC, given heightened criticism for the latter agency among Republican lawmakers.For many advocates, this bill is welcome news that Congress is reasserting its power of the purse in opposition to the president, yet significant concerns remain. Will the two chambers actually reach a promising compromise? And even if Congress appropriates strong funding for FY26, given all the recent moves by the Administration to rescind, halt, or slow the disbursement of federal spending, will this money actually reach researchers and health implementers to deliver impact? While we can’t predict for certain, GHTC and other advocates will continue to keep a close watch on what’s to come and activate where we can in order to protect vital funding for global health and medical research. 

Over the past few months, the US administration has made sweeping changes at the Department of Health and Human Services (HHS), the backbone of America’s public health and health research infrastructure, which contains the National Institutes of Health (NIH), Centers for Disease Control and Prevention (CDC), and Biomedical Advanced Research and Development Authority (BARDA). Together, NIH, CDC, and BARDA, in conjunction with other agencies across the government, support the development of health technologies that save and improve lives in the United States and around the world, including a key role in combatting emerging infectious diseases and longstanding global health challenges like HIV/AIDS.   As the United States’ lead agency for medical research, NIH has long been at the forefront of scientific discovery, pushing forward innovations in health technology across a range of health areas. In compliment, BARDA supports the advanced development of medical countermeasures against diseases with pandemic potential to shore up the nation’s public health security, and CDC, alongside tracking the spread of diseases and other health threats, supports the development of new diagnostic, prevention, and surveillance technologies and evaluates the effectiveness of existing tools to inform future research and development (R&D) needs. Far-reaching cuts to HHS’s workforce and infrastructure and the terminations of thousands of research grants—with further budget reductions proposed—threaten to reverse decades of scientific progress, shrink the pipeline of next-generation health technologies, weaken the country’s biomedical workforce and industry, and make Americans and people around the world more vulnerable to longstanding and emerging health threats.  Widespread job losses and restructuring jeopardize key R&D functionsThe US administration has overseen the dismissal or abrupt exits of up to 20,000 federal employees across HHS—amounting to 25 percent of the workforce. Thirteen hundred jobs were eliminated at NIH and around 2,400 at CDC (while some jobs have since been restored, the administration’s pivots have made it hard to track the scale and permanence of these changes), including the removal of directors and gutting of divisions focused on infectious disease and global health partnerships. The departure of these staff—from seasoned leaders to young recruits—represents an immense loss of expertise and promise and could lead to severe disruptions in critical research and surveillance efforts.Additionally, HHS has also canceled thousands of research grants over the past few months—estimates of the value of terminated funding at NIH alone range from $1.8 to $2.7 billion (more than 1,000 grants terminated and 1,000 additional projects that had funding delayed) and billions more from CDC and BARDA, with research on COVID-19 and other emerging infectious diseases and HIV/AIDS particularly impacted. Moreover, a new NIH policy halting foreign subawards could upend international research collaborations and put thousands of additional grants at risk of termination, while a policy to cap NIH indirect research costs, which has remained blocked in the courts, could further erode available funding to support researchers.Beyond these initial layoffs and cuts, the administration is also proposing a restructuring effort and federal budget for fiscal year 2026 that would reduce funding for NIH, CDC, and BARDA by 43, 53, and 36 percent respectively and implement a new primary focus on chronic disease at HHS, shuttering key centers carrying out infectious disease research and forging global partnerships, including the NIH Fogarty International Center and CDC’s Global Health Center and National Center for HIV, Viral Hepatitis, STD, and Tuberculosis Prevention.While thoughtful and thorough reforms could serve to improve these agencies’ ability to carry out critical work and ensure American taxpayer money is well spent, the rapid pace and far-reaching scale of these cuts and changes (which have seen pushback in the courts) has aroused concern among many across academia, industry, and the medical research sector who fear long-term health and economic consequences and the risk of a US scientific workforce “brain drain,” as researchers leave the field or country altogether. Terminated research makes Americans more vulnerable to emerging health threatsFrom avian influenza to COVID-19, Ebola, and mpox, emerging health threats pose a growing risk to Americans in our increasingly interconnected world. We know all too well the significant toll of pandemics, both in terms of lives lost and health care spending and economic disruptions.NIH, CDC, and BARDA have historically played a crucial role in ensuring that Americans have the technologies to protect us against disease threats wherever they arise. The research that led to the development of the mRNA vaccines for COVID-19 and rapid diagnostic tests and the world’s first vaccine and treatments for Ebola were all supported by one or multiple of these agencies.Unfortunately, research on COVID-19 and other emerging threats have been among those areas most heavily impacted by recent grant terminations, caught in the crosshairs of various efforts to claw back COVID-19 funding; curtail funding for mRNA, gain-of-function, and vaccine research; zero out funding for specific universities; and prioritize chronic disease research.For example, at NIH, an initiative founded in 2022 to support the development of antivirals against a range of pandemic threats, including the viruses that cause Ebola, Zika, and measles, was defunded. Other NIH-funded projects to develop pan-coronavirus vaccines that could protect against COVID-19, MERS, SARS, and other yet-to-emerge coronaviruses, as well as drugs targeting a range of RNA viruses, including coronaviruses, avian influenza, and measles, were also cut.At CDC, $11.4 billion in funding allocated for the COVID-19 response was pulled back, including funding that was supporting essential surveillance and preparedness activities for COVID-19 and other emerging health threats. Meanwhile, at BARDA, grants supporting the late-stage development of mRNA vaccines for avian influenza were terminated over concerns about the safety of mRNA technology, despite scientific consensus that mRNA vaccines are safe and saved millions of lives during the COVID-19 pandemic.If enacted, the proposed HHS restructuring and president’s budget proposal would also eliminate key functions across NIH and CDC that serve as our first line of defense against pandemic threats. These include institutes and centers, like the NIH Fogarty International Center and CDC Global Health Center, that provide critical training, forge international partnerships, and monitor and respond to threats abroad.   If a new outbreak were to start (or if one of the several ongoing ones suddenly worsened) tomorrow or next month, the precious expertise, resources, and technologies in the pipeline that are now being lost or rolled back would mean Americans would be less safe and less prepared. In fact, the very ability to swiftly identify a new outbreak is now in question. Research terminations set back progress in the fight against HIV/AIDS and other longstanding global health challengesHIV has led to the deaths of more than 700,000 people in the United States since 1981, with 1.2 million Americans now living with HIV. NIH and CDC have played a crucial role in developing technologies and supporting programs that have reduced the number of new infections and enabled Americans and people around the world living with HIV to live longer and healthier lives.NIH has long been a global leader in HIV R&D, working with partners to isolate the virus for the first time and discovering a new class of antiviral drugs that helped turned HIV into a manageable chronic condition. HIV research supported by NIH has also led to technologies for other diseases and health conditions that affect millions of Americans, including cancer, heart failure, and even COVID-19. But efforts to drastically reduce funding for infectious disease research, including HIV research, at the agency could slow the discovery of future health breakthroughs.NIH has already terminated at least $759 million in grants involving HIV research, with many caught up in attempts to realign US investments away from diversity, equity, and inclusion efforts; zero out federal funding for several universities; crack down on funds going to foreign sub-awardees; and cut all foreign aid dollars for South Africa.  The latter two policies targeting research done outside of the United States are of particular concern for HIV R&D. While HIV continues to affect many Americans, to ensure new technologies are broadly effective, it is crucial to conduct research in diverse populations of people living with or at risk of HIV, including populations outside the United States—especially in South Africa, which remains the epicenter of the pandemic. The executive order ending US aid to South Africa has already threatened the continuation of at least 24 HIV trials being carried out there, including those advancing some of the most promising new tools. (The impact of these two policies also goes far beyond HIV/AIDS, with basic and clinical research on other longstanding global health challenges like tuberculosis and malaria also disrupted).NIH supports four global HIV clinical trial networks, which facilitate cross-sector and international partnerships furthering HIV R&D, all of which have seen their ongoing research or functions hampered in some way in the last few months by terminations and this collection of policies. They are now having to grapple with their future; one network has already scaled back ongoing studies, declined new research opportunities, laid off employees, and canceled at least six scheduled trials.NIH also notified two major consortia working on developing an HIV vaccine that it will not renew funding next year. While new long-acting HIV prevention tools represent major breakthroughs, most experts agree that a traditional, immunizing vaccine is still needed to sustainably end HIV/AIDS as a global health challenge. The consortia’s work has had tremendous success, furthering what are widely considered the most innovative, experimental vaccine candidates into clinical trials.  CDC has also played a complementary role in HIV efforts, leading surveillance and supporting research to help improve prevention and treatment efforts in the United States and globally. It is also a key implementing agency of the President’s Emergency Plan for AIDS Relief, or PEPFAR. Proposed budget cuts and restructuring at CDC would curtail domestic HIV prevention and surveillance activities, as well as eliminate the agency’s Global Health Center and, with it, a specific funding line for global HIV and TB activities (though the agency will likely continue to implement certain PEPFAR activities), undermining the ability of public health officials to track new infections and ensure patients can start treatment in a timely manner. They would likewise dismantle the NIH Fogarty International Center and, with it, programs that have long played a key role in training the next generation of HIV researchers.These changes threaten to set us back in the decades-long effort to develop a vaccine and other game-changing technologies to address HIV/AIDS, which were gathering momentum recently, with promising vaccine clinical trial results and the recent approval by the US Food and Drug Administration of an injectable HIV prevention drug (developed using evidence from NIH-funded research) that provides long-term protection—the next best thing from a vaccine. Delays and suspensions of ongoing research, as well as disrupted surveillance and services, could not only stall the development of the next generation of technologies, but also potentially lead to a resurgence of HIV in the United States and around the world.The bottom lineInvestments in global health R&D, including investments in emerging infectious disease and HIV/AIDS R&D, at NIH, CDC, BARDA, and other US agencies have demonstrated a huge return on investment, delivering 67 new technologies approved since 1999 for neglected and non-COVID emerging infectious diseases. Additionally, between 2007 and 2022, at least 86 percent of all funding that the US government directed to global health R&D was reinvested in American companies and institutions. This investment has created an estimated 600,000 new American jobs, spurred $104 billion in direct economic activity, and yielded scientific knowledge to inspire further innovations, which will ultimately generate $255 billion in long-term benefits to the American economy.  As the global heavyweight in biomedical R&D, NIH investments alone have generated hundreds of thousands of jobs and billions in new economic activity in every state (including the most rural ones), bolstering the American universities, research institutes, and businesses that make up the biomedical sector. And it pays off: every $1 received from NIH generates $2.46 on average in increased economic activity. In fact, we’re already beginning to see the dramatic economic fallout of this pullback in investment. These past investments have made America a global leader in biomedical innovation. As other countries start to pursue American researchers who have lost jobs and funding and China makes major investments and advances in life sciences R&D, for the first time surpassing the United States in drug clinical trials in 2024, America could fall behind. Investing in biomedical research is a tide that raises all boats and benefits cross-cutting health areas. In an era of great scientific opportunity but increased risks, this is the time to invest more and shore up the critical work at HHS agencies to boost the economy, America’s leadership on the world stage, and our ability to protect Americans and people around the world from an ever-increasing roster of longstanding and new health threats.