A newly posted agenda for next week’s meeting of the just-appointed group of outside vaccine advisers to the US Centers for Disease Control and Prevention includes a discussion and vote on thimerosal in flu vaccines,

A senior scientist at the U.S. Centers for Disease Control and Prevention has resigned, warning that changes in leadership may weaken the country's vaccine program.

Fiona Havers, who oversaw CDC respiratory virus data, told colleagues she no longer had confidence the data would be used objectively to set vaccine policy.