Monday, November 8, 2021
Effectiveness of 2 of 3 COVID-19 Vaccines Used in US Drops Below 50 Percent After 6 Months: Study
The effectiveness of the three COVID-19 vaccines available in the United States has declined in recent months, with protection against infection falling under 50 percent for two of them after six months, according to a new study. Moderna’s COVID-19 vaccine dropped from 89.
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