Pfizer COVID vaccine shows varied effect against variants, study suggests
One dose of the Pfizer/BioNTech COVID-19 vaccine appears to be not very protective against the B117 variant, and two doses may not be as effective against the B1351 variant, according to a non–peer-reviewed, real-world Israeli study posted late last week on the medRxiv preprint server.
Led by researchers at Tel Aviv University, the case-control study compared nearly 400 people who had received one or two doses of the Pfizer vaccine and were infected by SARS-CoV-2 with matched unvaccinated, infected controls.
Vaccinated participants were infected either at least 1 week after their second dose or between at least 2 weeks after the first dose and before 1 week after the
Covid-19.rehab - the latest news concerning the spread of the SARS-CoV-2 coronavirus (formerly 2019-nCoV), as well as the infectious disease that it causes COVID-19, in separate countries and in the world as a whole. Current news on the topic of coronavirus SARS-CoV-2. Quarantine, pandemic 2020, epidemic: what is it, when will it come to end, precautions and how to protect yourself from this disease. The most honest news, no fakes! To keep up with the latest news, stay tuned for updates on the site! Every day we will collect news and statistics on coronavirus from around the world for you to be aware of this topic.
Owner: SNOWLAND s.r.o.
Registration certificate 06691200
16200, Na okraji 381/41, Veleslavín, 162 00 Praha 6