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Delta Variant Key to Breakthrough Infections in Vaccinated Israelis

Pfizer announced Thursday that it will seek US Food and Drug Administration (FDA) authorization for a booster shot of its COVID-19 vaccine as the company acknowledges its two-dose vaccine has shown waning effectiveness against the Delta variant. In a statement, the company said it will seek an emergency use authorization […]

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Breakthrough’ COVID Found in More Than 10K Vaccinated Americans: CDC

  Centers for Disease Control and Prevention (CDC) researchers report that more than 10,000 fully vaccinated Americans have experienced “breakthrough” COVID-19 through April 30, 2021. They note that the figures are likely an underestimate. The 10,262 SARS-CoV-2 vaccine breakthrough infections were reported from January 1 through April 30 in 46 […]

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