Author Topic: Vaccination  (Read 3055 times)

guest55

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Re: Coronavirus
« Reply #15 on: November 09, 2021, 06:54:17 pm »
Study shows dramatic decline in effectiveness of all three COVID-19 vaccines over time
Quote
A study of 780,000 veterans shows a dramatic decline in effectiveness for all three COVID-19 vaccines in use in the U.S.