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The head of the Food and Drug Administration said Tuesday that the agency is now looking at whether it will still approve COVID-19 vaccines for next winter, citing a lack of data on booster shots. "We're taking a look. I can't comment on any particular application. As you know, we have a bunch of applications for those booster shots," FDA Commissioner Dr. Marty Makary told CBS News chief Washington correspondent Major Garrett. Makary said many health care workers did not get the last round of COVID-19 vaccine booster shots, calling it "a bit of a public trust problem." (Tin, 4/29)

Health Secretary Robert F. Kennedy Jr. advised parents of newborns to “do your own research” before vaccinating their infants during a televised interview in which he also suggested the measles shot was unsafe and repeatedly made false statements that cast doubt on the benefits of vaccination and the independence of the Food and Drug Administration. Mr. Kennedy made the remarks to the talk show host Dr. Phil in an interview that aired Monday on MeritTV to mark the 100th day of the Trump administration. (Gay Stolberg and Jewett, 4/29)

The National Academy of Sciences has canceled a workshop on preventing human bird flu infections after being told to stop work on the event by the U.S. Centers for Disease Control and Prevention, according to an email sent to one of the workshop presenters and seen by Reuters. (Douglas, 4/29)

In a commentary in The Lancet Regional Health–Americas, leading virologists from more than 40 countries are exhorting global leaders to address the increasing threat of H5N1 avian flu by boosting surveillance, enhancing biosecurity, and preparing for potential human-to-human viral transmission. The Global Virus Network (GVN) scientists review the US outbreak status, discuss the importance of robust surveillance systems to detect emerging strains with pandemic potential, spotlight the risks facing the dairy and poultry industries, and recommend risk mitigation strategies. (Van Beusekom, 4/29)