Prognosis
Europe Splits With U.K. on Covid Shot-Stretching Strategy
- EU regulator says cutting, spacing out doses invites risks
- Developers haven’t provided the evidence to alter regimens
Photographer: Ben Birchall/PA Wire/Bloomberg
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The European Union’s top medicines regulator said altering the way coronavirus vaccines are given to people in a bid to stretch supplies and slow the fast-spreading pathogen raises the risk of reducing effectiveness, in a split with its U.K. counterpart.
Vaccine developers haven’t provided sufficient evidence to justify cutting the number of doses each person receives, lengthening the time between shots or mixing vaccines from different manufacturers, the European Medicines Agency said Friday in an emailed response to questions.