Drastic drop in Covid vaccine effectiveness – study Three dif | RT News

Drastic drop in Covid vaccine effectiveness – study

Three different coronavirus shots – those mainly available in the US and Europe – have shown a dramatic decline in efficacy over time, a study of nearly 800,000 Americans reveals.

Covid-19 vaccine effectiveness against both infection and death was studied in three US approved jabs – the Pfizer-BioNTech and Moderna mRNA shots, and the Janssen viral vector vaccine.

Having analyzed data from 780,225 US veterans of different ages and sexes between February and October, researchers came to a disturbing conclusion. Vaccine protection against Covid-19 infection dropped from 89.2% at its highest to a low of 13.1%, according to a joint study by the Public Health Institute, the Veterans Affairs Medical Center, and the University of Texas Health Science Center, published in the Science journal on Thursday.

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