Following the postponement of a regularly scheduled February meeting of its vaccine advisory committee, the US Centers for Disease Control and Prevention (CDC) on X today announced the launch of a new tool that it says is designed to increase transparency about current and past members of the Advisory Committee on Immunization Practices (ACIP).

It notes that members are asked to declare any actual or perceived conflicts of interest that arise during their ACIP tenure and that at each meeting the ACIP chair calls for conflict-of-interest disclosures at the beginning of the meeting and ahead of each vote. Members with conflicts of interest are asked to recuse themselves from discussions and votes on topics that relate to specific conflicts.

The tool allows the public to search each current and past ACIP member's stated conflicts of interest dating back to 2000. The Department of Health and Human Services, under the leadership of its new secretary, Robert F. Kennedy Jr., has not unveiled a similar tool for advisory committees for other health agencies under its purview.

ACIP had been scheduled to meet from February 26 to February 28, with recommendation votes scheduled on a handful of topics, including chikungunya and meningococcal vaccines. The CDC said the meeting was postponed to accommodate public comment ahead of the meeting. 

Likewise, the Food and Drug Administration (FDA) advisory committee's March 13 meeting to discuss strains to recommend for the 2025-26 flu season has been postponed, though officials said the FDA would make a recommendation in time for vaccine makers to begin the 6-month process of updating and producing the next season's flu vaccines.

Former director: Tool affirms routine safeguards

Former CDC Director Tom Frieden, MD, MPH, said today on X, "Some may interpret this as a scandal. It’s really confirmation ACIP members follow strict conflict of interest rules—an important safeguard!" 

He added that the people who evaluate the safety and efficacy of vaccines are parents, pediatricians, scientists, and public health professionals. "They're not doing it for profit." Frieden is currently president and chief executive officer of Resolve to Save Lives, a global health group centered on battling chronic diseases and infectious disease epidemics.

Five countries reported polio cases this week, including Pakistan, which reported three cases of wild poliovirus type (WPV1), according to the latest update from the Global Polio Eradication Initiative (GPEI).

The three WPV1 cases, with onset of paralysis in January and February, were in Sindh and Punjab provinces. The cases bring the country's total WPV1 cases in 2025 to six. Pakistan is one of two countries (along with Afghanistan) where wild poliovirus is still endemic.

The other polio cases reported this week involved circulating vaccine-derived poliovirus type 2 (cVDPV2). Among the affected countries is Nigeria, which reported 7 cVDPV2 cases (4 from 2024 and 3 from 2025) in Kano, Borno, and Jigawa provinces, bringing its 2024 total to 98 cases and its 2025 total to 3 cases. GPEI said it recently sent a high-level delegation to Nigeria to discuss the country's efforts to stop cVDPV2 transmission.

Chad reported 4 cVDPV2 cases, 2 having onset of paralysis in November and 2 in January, bringing its total number for 2024 to 37 cases and for 2025 to 2. Cameroon reported a cVDPV2 case with paralysis onset in December, bringing its total for 2024 to 3 cases. Djibouti reported its first cVDPV2 case of 2025 after confirming none in 2024.

• The US Department of Agriculture (USDA) has eliminated two of its food safety advisory committees that have been in place for decades, Food Safety News reported today. The USDA notified members of the two groups—the National Advisory Committee on Microbiological Criteria for Foods and the National Advisory Committee on Meat and Poultry Inspection—on March 6. Brian Ronholm, director of food policy at Consumer Reports, said the expert panels have regularly provided expertise to federal health agencies and that the failure to recognize and leverage their scientific advice is "dangerous and irresponsible."
• The UK Health Security Agency (HSA) today said health officials are tracing contacts of a person from Nigeria who visited England while sick with Lassa fever at the end of February. Officials said the person was diagnosed as having the illness when he or she returned to Nigeria. The HSA said Lassa fever doesn't spread easily among people and that the risk to the public is very low. The disease is endemic in some West African countries. Lassa virus can spread to people who are exposed to food or household items contaminated by urine or feces from infected rats. The United Kingdom reported its last imported Lassa fever case in 2022.
• Uganda today received 2.278 million doses of malaria vaccine, which it will use to immunize people in 105 of the country's districts that are in the high- and moderate-risk categories, Gavi, the Vaccine Alliance, and the health ministry said in a joint statement today. The vaccine will be incorporated into Uganda's routine vaccine schedule starting in April, targeting kids younger than 2 years old, and will eventually be rolled out the whole country. The vaccine delivery was made by Gavi with co-financing from Uganda's government. Seventeen African countries have introduced the vaccine. Six to eight more are expected to introduce malaria vaccination later this year.