IXCHIQ in the UK: from restriction to revocation
On 20 October 2026 the MHRA confirmed that the UK marketing authorisation for IXCHIQ, a live attenuated chikungunya vaccine, has been withdrawn. The decision did not rest on a brand-new signal: restrictions by age and comorbidity had not contained the risk, while the benefit for short-term travellers stayed modest. A case study in context-dependent benefit-risk.
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