Breakthroughs Blog: Ebola

A systematic review and meta-analysis of studies looking at the effectiveness of typhoid conjugate vaccines found that they are highly effective in preventing typhoid fever in countries where the infection is endemic, adding to the collection of real-world evidence supporting their use. Despite the high burden of typhoid fever—an infection caused by Salmonella enterica serovar Typhi—in Africa and Asia, only ten countries to date have added the vaccines to their national immunization programs. There are three vaccines for preventing typhoid fever that are currently recommended and licensed by the World Health Organization. Last week, California-based True Diagnostics announced that it had received an award of upward of $11 million from the Biomedical Advanced Research and Development Authority (BARDA) to support the development of a blood-based rapid antigen test for Ebola and Marburg viruses. The test, if it proves effective, could help boost testing capacity and national preparedness for outbreaks of pathogens with pandemic potential like Ebola and Marburg viruses, which have caused worrying outbreaks in Africa in recent years. Specifically, the funding will support the further development, validation testing, and regulatory submissions of its VeriClear EbV MARV Rapid Antigen Test to detect and differentiate Ebola and Marburg viruses in fingerstick blood samples.   A research team presented new data at the 2025 European Society for Medical Oncology Congress in Berlin, Germany last week, showing that cancer patients who received COVID-19 mRNA vaccines within 100 days of starting immunotherapy drugs survived more often than non-vaccinated patients. These findings suggest that mRNA vaccines could help improve outcomes for cancer patients being treated with immunotherapies and even patients with treatment-resistant cancers. While these results are preliminary and need to be confirmed in an upcoming Phase 3 randomized clinical trial, scientists say they could revolutionize cancer care, perhaps even paving the way for a universal, off-the-shelf vaccine for cancer. 

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. 

For decades, strong US government investment in biomedical innovation has fueled the development of new vaccines, treatments, and other breakthrough global health technologies that have saved and improved millions of lives around the world and here at home. Unfortunately, in recent months, we have seen these investments decline significantly, as the US government has shrunk its foreign assistance footprint and ended hundreds of medical research grants. With the majority of global health research programs at the US Agency for International Development (USAID) and many other key US agency programs facing an uncertain future, past progress and future gains in global health innovation are now at risk. These disruptions threaten to undermine the United States’ longstanding role as a global leader in biomedical innovation, compromise the return on previous investments, and heighten health risks for people in the United States and around the world.The current US administration has signaled its priority to make America safer, stronger, and more prosperous—a goal which is directly aligned with the outcomes of global health research and development (R&D). By embracing ongoing commitments and continuing to invest in global health R&D, US policymakers can safeguard the well-being, resilience, and economic prosperity of the American people—advancing the agenda of the US administration while simultaneously saving and improving lives around the world. Global health R&D protects Americans from disease threats and promotes international stabilityDisease threats know no borders. Americans are increasingly at risk of emerging and neglected diseases, as underscored by the recent domestic outbreaks of H5N1, measles, mpox, and tuberculosis. Right now, health technologies developed with US funding are protecting Americans and ensuring that the United States is equipped with the proper tools to mitigate disease threats. The 2025 outbreak of Sudan virus, which can cause Ebola disease in humans, in Uganda was the latest Ebola outbreak that endangered the well-being of citizens worldwide. In addition to providing critical monetary and technical assistance contributions to Uganda to combat this outbreak, the US government also donated courses of an experimental monoclonal antibody treatment that was developed with US funding and 500 rapid detection test kits to support ongoing surveillance and prevention of future outbreaks. Additionally, other global partners launched two major clinical trials testing an experimental vaccine and therapeutics, including the monoclonal antibody therapy and an antiviral treatment, all of which were developed with past US government support. Collectively, these interventions and the rapid response effort helped stop the virus from spreading beyond Ugandan borders, ultimately protecting lives around the world and quelling the potential threat to Americans. Thanks to sustained US investment in Ebola research and outbreak response since 2011, the United States had the knowledge, infrastructure, and tools needed to respond quickly and effectively to the recent outbreak—minimizing the threat to regional stability and American public health.Beyond Ebola, the US government has also advanced other global health breakthroughs that have directly benefited Americans, including new drug-resistant tuberculosis treatments, long-acting HIV prevention and treatment options, and vaccines for mpox.Global health R&D strengthens US global influence, while also protecting military personnelGlobal health R&D has historically been a powerful diplomatic tool for the United States in strengthening its partnerships and ties around the world. By drawing back its investments, the United States risks ceding leadership in the foreign policy and medical research space to other countries—including its geopolitical rivals—who could step up to fill part of the vacuum left behind. Take China for example: in recent years, it has continued to grow its R&D investments, diminishing the gap between American and Chinese investments. Additionally, at the 2024 Forum on China Africa Cooperation, the Chinese government announced plans to encourage Chinese businesses to invest in the production of medicines and vaccines in Africa as part of its 2025-2027 action plan. As other global actors expand their influence in global health, including through increased investment in medical innovation and manufacturing, the United States must remain engaged to preserve its leadership, uphold its values, and continue delivering lifesaving impact around the world. Diminished leadership in global health innovation could also increase the vulnerability of US military personnel stationed around the world. Infectious diseases are the single largest cause of hospitalizations of US servicemembers during conflicts, representing an average of nearly 60 percent of casualties in recent conflicts. Global health technologies advanced through foreign assistance dollars and non-defense spending have helped keep US warfighters healthy and safe. For example, the US Centers for Disease Control and Prevention helped create a test to ensure US military uniforms treated with malaria-targeting insecticides remain effective, and USAID supported the development of tafenoquine, a single-dose medicine used to treat Plasmodium vivax malaria, as well as the only US Food and Drug Administration-approved treatment for leishmaniasis, a parasitic disease common in the Middle East. Without continued investments in research, challenges like growing antibiotic resistance could put the US military in an increasingly vulnerable position.Global health R&D drives American innovation and prosperityBetween 2007 and 2022, the US government invested just under $46 billion in R&D for neglected diseases, emerging infectious diseases, and sexual and reproductive health issues (To put this amount in context, in 2022 alone, the US government spent $751 billion on defense and $1.34 trillion on Medicare and Medicaid). This relatively modest investment helped contribute to the development of 67 new technologies approved since 1999 for neglected and emerging diseases (excluding COVID-19) and fueled a burgeoning pipeline of 261 promising products in late-stage development, which could further reduce the human and economic toll of these diseases.Beyond its health impact, this investment has also delivered substantial economic benefits to the US economy. 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.These investments have also proven their potential to create cost savings, by driving down health care costs or preventing costly care down the line. For example, switching all patients with drug-resistant tuberculosis to regimens incorporating a new drug, pretomanid, which was developed with support from USAID and the National Institutes of Health, could generate global cost savings of $740 million annually. Even modest investments in scientific research can yield significant economic returns for the United States. The good we do makes us great Investment in global health R&D makes up just a small portion of the federal budget—around 0.8 percent in fiscal year 2022—but it has a priceless impact on the lives and livelihoods of Americans and people in need around the world. When the United States invests in global health research, we create opportunities and benefit the health of people in our nation and around the world. We fuel innovation at home. We create jobs. We make friends and allies. We make the world safer, and we make our world safer too. It’s the good we do, in part, that makes us great. As the US government reimagines its foreign assistance architecture and makes future research funding decisions, global health R&D efforts must be prioritized to preserve the progress we’ve made and deliver the bold breakthroughs of tomorrow. Sustaining the US government’s commitment to global health R&D will yield strategic and cost-effective benefits, bringing us closer to a safer, stronger, and more prosperous America and world—but only if we are able to meet the moment we are in.

Interested in more global health innovation news? Every week GHTC scours media reports worldwide to deliver essential global health R&D news and content to your inbox. Sign up now to receive our weekly R&D News Roundup email. A new study explores the novel use of artificial intelligence (AI) to screen for antimicrobial compound candidates that could be developed into new tuberculosis (TB) drug treatments, as the rise of drug-resistant strains of TB underscores the urgent need for new drug candidates. While discovering new TB drug candidates through traditional laboratory methods is laborious and time-consuming, sensitive machine learning is better and faster at helping interpret complicated images of the Mycobacterium tuberculosis bacterium, accelerating TB research capabilities and helping identify optimal candidate compounds for drug development.A COVID-19 nasal vaccine will enter a Phase 1 clinical trial conducted by the National Institute of Allergy and Infectious Diseases in the United States this spring. While COVID-19 cases have fallen dramatically since the height of the pandemic, the virus continues to circulate and cause severe illness and death. The nasal vaccine is designed to induce strong immunity in the nose and upper respiratory tract where the virus enters the body, aiming to not only reduce serious illness and death but also to stop transmission in the first place, which cannot be achieved through COVID-19 vaccines that are injected into the body. If proven successful, the technology could also be adopted for other common respiratory viruses, including seasonal influenza, avian flu, and respiratory syncytial virus.Uganda recently launched a trial of IAVI’s experimental vaccine targeting the Sudan virus, which causes Ebola disease, following the identification of an outbreak in the country that has, so far, killed one person and infected two others. There are no currently approved vaccines for Sudan virus, although there is a vaccine for the Zaire strain of Ebola, highlighting the urgent need to generate data about vaccine candidates in the pipeline when outbreaks arise. Ugandan health authorities and research teams have rapidly jumped into action to prepare for the trial—2,160 doses of the trial vaccine and treatments arrived in Uganda’s capital, Kampala, over the weekend.