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Vaccine makers take a hit after head of the US drug regulator ousted

Reprieve from reciprocal tariffs has come as a small but welcome relief to vaccine makers who have been having a bad week.

Shares of Moderna and Novavax sank 8 per cent on Monday after a key official at the US Food and Drug Administration resigned in protest against health secretary Robert F Kennedy Jr’s views on immunisation.

Peter Marks had led the FDA’s vaccine division for eight years, but was forced to resign at the direction of the regulator’s Trump-appointed commissioner Marty Makary.

Marks’s dismissal sent shivers through the industry and sparked fears that scientific standards could be eroded.

RFK Jr has laid out plans to reduce headcount at the agency by 3,500 over the coming weeks.

Marks accused Makary of seeking “subservient confirmation of his misinformation and lies”.


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