The news for Covid vaccines gets worse and worse
Alex Berenson Reports: The news for Covid vaccines gets worse and worse
Effects of Previous Infection and Vaccination on Symptomatic Omicron Infections
Previous infection with a variant other than omicron was associated with an approximately 50% reduced risk of infection. No difference in the protection of previous infection against BA.1 and BA.2 was discernable. Two-dose vaccination and no previous infection had negligible effectiveness against BA.1 and BA.2, but most persons received their second dose more than 8 months earlier. These findings are explained by the short-lived protection of…
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