The Trump era is rife with Republicans who abandon their principles in the name of toeing Donald Trump’s line. But few have gambled with those principles recently like Louisiana Republican Sen. Bill Cassidy.

The US health secretary, a vaccine sceptic who has been criticised by health experts, said the panel was 'plagued' with conflicts of interest.

Health and Human Services Secretary Robert F. Kennedy Jr. announced Monday that he is dismissing all 17 members of the Advisory Committee on Immunization Practices (ACIP), a key panel that guides national vaccine policy.