Public health officials issued warnings after an unvaccinated traveler infected with measles rode an Amtrak train from Chicago to Los Angeles, then traveled by trains and buses across at least six California counties before being hospitalized. Thousands of passengers may have been exposed to the highly contagious disease.
The Democratic Republic of the Congo launched an Ebola vaccination campaign for 50,000 frontline health workers in Bunia, the epicenter of the country's largest-ever outbreak with over 7,000 cases across seven provinces. Aid groups warn the outbreak is not slowing but rather shifting into less-prepared areas despite some encouraging signs.
The Zamfara State Ministry of Health in Nigeria has reported 44 deaths from a diphtheria outbreak affecting parts of the state. In response to the outbreak, authorities have extended the school resumption date.
Pfizer is targeting air traffic control agencies in Poland and Romania to enforce a Belgian court ruling ordering the two countries to accept €1.9 billion worth of COVID-19 vaccines they refused to take delivery of after pandemic-era demand waned.
Nigeria vaccinated 23 million children against polio and other diseases in the first half of 2026 as part of data-driven health interventions across Africa, while Pakistan confirmed its fourth polio case of the year in Khyber Pakhtunkhwa's Bannu district, highlighting ongoing challenges in global polio eradication efforts.
The FDA has filled four senior roles, including naming Mikhail and Davis as permanent leaders of CBER and CDER respectively, bringing stability to the agency after nearly two years of leadership turnover under the Trump administration.
The Trump administration made permanent the acting leaders of the FDA's Center for Drug Evaluation and Research (CDER) and Center for Biologics Evaluation and Research (CBER), stabilizing key agency posts as a new commissioner awaits confirmation.
Plateau Express Services Group, which operates state-owned mass transit in Nigeria's Plateau state, has implemented a "no face mask, no entry" policy on its buses as the region faces a worsening diphtheria outbreak. The policy was announced by management on Monday.
Health authorities in Plateau state, Nigeria are stepping up surveillance and response efforts after Jos North Local Government recorded 117 suspected diphtheria cases and 15 deaths as of September 1. The intervention aims to contain the outbreak in the affected area.
Professional organizations representing pediatricians, family physicians, and obstetricians jointly released their own vaccination recommendations for respiratory illness season, breaking from the CDC and widening the divide with federal health authorities.
A suspected diphtheria outbreak in Jos North Local Government Area of Plateau State, Nigeria has claimed at least 23 lives within three days, with health authorities confirming 117 people have contracted the infection. Health officials are warning of rapid spread and calling for urgent intervention.
The Federal Teaching Hospital Katsina reports its children's ward has exceeded capacity due to an influx of suspected and confirmed diphtheria cases. State officials are preparing to brief the public on the outbreak's scale and response measures, though case and death figures have not yet been disclosed.
BioNTech ended a mid-stage study of its experimental mRNA cancer vaccine after an independent committee determined the treatment was unlikely to help colorectal cancer patients live longer.
The World Health Organization announced that the Democratic Republic of Congo will receive 70,000 doses of the Ervebo Ebola vaccine to contain what officials describe as the fastest Ebola outbreak in history. The International Coordinating Group on Vaccine Provision approved the immediate release of doses following a request from Congo's government.
Moderna and Merck announced positive results from a Phase 3 trial showing their personalized mRNA cancer vaccine, combined with Keytruda, significantly reduced melanoma recurrence and spread. The companies aim to bring the therapy to market in 2027.
CDC data shows US kindergarten vaccination rates continue to decline while exemptions reach record levels, despite ongoing outbreaks of vaccine-preventable illnesses. The trend comes amid the Trump administration's controversial actions on childhood vaccines.
President Trump signed an executive order calling for the measles, mumps, and rubella vaccine to be split into three separate shots, despite medical experts warning this is unlikely to happen and could harm children. The order has drawn widespread pushback from the healthcare industry and public health officials.
President Donald Trump signed an executive order Monday calling for a major reduction in the number of universally recommended childhood vaccines, from 18 diseases to 11. The order also recommends splitting the combined MMR vaccine into three separate shots for measles, mumps, and rubella.
Australia will begin vaccinating vulnerable native birds, including thousands of little penguins on Phillip Island, against the deadly H5N1 bird flu strain in the coming days and weeks. The virus was first detected in Australia in June 2026, making it the last continent to report cases of the highly contagious strain.
British researchers have conducted the first successful clinical trials of vaccines that do not require refrigeration, a breakthrough that could address the problem of half of all vaccines being discarded due to cold chain failures.
Moderna has initiated a Phase 1 clinical trial in Canada of mRNA-1469, an experimental vaccine targeting Bundibugyo ebolavirus, a strain of Ebola that has killed over 1,650 people and currently has no approved vaccine. Health Canada has authorized the trial and the first participants have already been vaccinated.
Hilleman Laboratories, a Singapore-based partnership between Merck and Wellcome, is preparing to produce doses of an experimental vaccine targeting the rare Bundibugyo strain of Ebola amid a fast-spreading outbreak in the Democratic Republic of Congo.
The Trump administration announced it will immediately release $600 million in congressionally appropriated funds for Gavi, the global vaccine alliance serving the world's poorest countries. The funds had been withheld due to unsubstantiated safety concerns raised by U.S. Health Secretary Robert F. Kennedy Jr.
Oxford University researchers administered the first dose of a rapidly developed vaccine targeting the Bundibugyo strain of Ebola to a UK volunteer, as the deadly outbreak in the Democratic Republic of Congo has now killed over 1,000 people. Separate studies suggest existing Ebola vaccines may offer some cross-protection against this rare strain.
The Serum Institute of India has signed an agreement with the Gates Medical Research Institute to manufacture M72/AS01E, a novel tuberculosis vaccine candidate currently in late-stage clinical trials. If approved, it would be the first new TB vaccine in over 100 years, with Serum Institute planning to invest over $100 million in production.
The Joint Committee on Vaccination and Immunization (JCVI) has recommended that the UK government introduce a routine Meningitis B vaccination program for adolescents at around age 15, following recent fatal outbreaks including one in Kent. The vaccine is currently only routinely given to babies.
New Zealand reported its first case of the deadly H5N1 bird flu after a migratory seabird was found infected on a beach near Wellington. Biosecurity Minister Andrew Hoggard announced the detection, which has raised concerns for the country's uniquely vulnerable wildlife.
The University of Oxford has begun the first human trial of a vaccine targeting Bundibugyo ebolavirus, accelerating efforts to combat an ongoing outbreak in the Democratic Republic of Congo. A US patient infected in Congo is being treated at a German hospital.
Researchers report safety and preliminary efficacy results from a phase Ib clinical trial testing personalized neoantigen-pulsed autologous dendritic cell vaccination in patients with newly diagnosed glioblastoma, a deadly brain cancer with limited treatment options.
A study on COVID vaccine effectiveness that was blocked from publication by the CDC's acting director has been published in an outside medical journal. The research found that vaccines reduced emergency department visits and hospitalizations among healthy adults by approximately half during last winter.
New clinical trial results presented at the American Society of Clinical Oncology show that Moderna's experimental personalized mRNA vaccine, combined with immunotherapy, significantly reduced the risk of deadly melanoma returning after five years. The vaccine is custom-made for each patient based on their specific tumor.
Colorado is charting an independent course on vaccine promotion as the federal government reduces its public health role, with public health advocates and residents starting a public conversation about vaccine importance.
A new survey found that the CDC's recent changes to messaging suggesting a possible link between vaccines and autism can undermine public trust in vaccines and science, despite scientific consensus showing no such link exists.
Multiple new studies project that delaying hepatitis B vaccination after birth—as recommended in new U.S. policy that offers the vaccine only to at-risk infants—will lead to increased infections, decreased survival rates, and lifelong health complications among newborns.
Two major clinical trials led by St. Michael's Hospital and Oxford University found that Paxlovid does not reduce hospital admissions or deaths in vaccinated adults at higher risk of severe COVID-19, though it helps them recover faster.
U.S. health officials have prevented publication of a study on COVID vaccine effectiveness, prompting concerns from Senator Dick Durbin and others about the muzzling of scientists and doctors. This follows earlier halts to CDC communications.
India has approved new tuberculosis vaccines for adolescents, backed by a large, independent Phase III clinical trial led and funded by public science institutions. The vaccines represent a significant breakthrough in TB prevention, though officials note they are not a complete solution.
Scientists discovered that mRNA cancer vaccines can still destroy tumors even when a key immune cell type is missing, revealing unexpected mechanisms of action. The research advances understanding of how Nobel Prize-winning mRNA technology can be adapted from COVID-19 vaccines to fight cancer.
A major study finds that respiratory syncytial virus (RSV) vaccination during pregnancy reduces infant hospitalization risk by more than 80%, offering significant protection against severe respiratory illness in newborns.
The CDC delayed publishing a study scheduled for March 19 that found Covid vaccines reduced urgent care and emergency visits by 50 percent and hospitalizations by 55 percent among healthy adults in 2025-2026. Acting CDC Director Jay Bhattacharya halted the report over methodological concerns despite it passing the agency's scientific review process and using the same observational methods the CDC has long employed for respiratory virus vaccines. The delay occurs under HHS Secretary Robert F. Kennedy Jr., who formerly chaired anti-vaccine group Children's Health Defense, called Covid shots the deadliest vaccine ever made, and directed the CDC to drop vaccine recommendations for children and healthy pregnant women. Public confidence has eroded, with only 41 percent of Americans believing Covid vaccine benefits outweigh risks according to a September 2025 YouGov survey.
New research shows that influenza vaccination significantly reduces the risk of heart attack and stroke even among people who contract the flu after vaccination, demonstrating cardiovascular benefits beyond infection prevention.
