Mixing Covid vaccines gives good protection, study suggests Any combination of Pfizer or AstraZeneca for first and second doses works, a study suggests.
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2026. Augusztus 11. Tiborc, Zsuzsanna napja van
2026. Augusztus 11. Tiborc, Zsuzsanna napja van
Mixing Covid vaccines gives good protection, study suggests Any combination of Pfizer or AstraZeneca for first and second doses works, a study suggests.
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