The Food and Drug Administration was allowed to participate in the World Health Organization's meeting this week on updating influenza shots, officials for the U.N. agency said, despite an order by President Trump last month banning government employees from working with the WHO.

The reported cancellation is the second time a federal-level vaccination panel meeting has been affected since Robert F. Kennedy Jr took over as the Health and Human Services secretary.

The Food and Drug Administration has canceled an annual advisers meeting to weigh in on yearly updates to the flu vaccine, raising some experts' concerns about next year's shot. CBS News chief medical correspondent Dr.