FDA: Study needed before mixing AstraZeneca with Sputnik V

The FDA says a study is needed before mixing AstraZeneca with Sputnik V as a second dose.

Vaccine Czar Carlito Galvez Jr. said the Philippines may use AstraZeneca as a second dose if Sputnik V's Component Number 2 fails to arrive, expected on Friday, Aug. 13.

Galvez noted delays in Sputnik V deliveries due to production and supply issues affecting around 50 countries.

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Food and Drug AdministrationCarlito Galvez Jr