AstraZeneca, Pfizer vaccines effective against Indian Delta COVID-19 variants
A study by the University of
Oxford, published in the journal Cell, demonstrates that currently
available vaccines, including AstraZeneca’s COVID-19 vaccine, will provide
protection against the Delta (B.1.617.2) and Kappa (B1.617.1) variants;
formerly the ‘Indian’ variants.
The study, investigated the ability of antibodies in the blood of people, who were vaccinated with the two-shot regimens, to neutralize the highly contagious Delta and Kappa variants.
These results build on the recent analysis by Public Health England showing early evidence of real-world data that two doses of AstraZeneca’s COVID-19 vaccine are effective against the Delta variant, with similar levels of protection achieved as those seen against the Alpha variant.
Last week, an analysis by the Public Health England (PHE) showed that
vaccines made by Pfizer Inc and AstraZeneca offer high protection of more than
90 per cent against hospitalization from the Delta variant.
Note: However, the
concentration of neutralising antibodies in the blood was somewhat reduced,
which may lead to some breakthrough infections, they cautioned.
Doctors Liked to Read More
https://www.astrazeneca.com/media-centre/articles/2021/astrazenecas-covid-19-vaccine-shows-effectiveness-against-indian-variants-of-sars-cov-2-virus.html
Liu C, Ginn HM, Dejnirattisai W,
et al; Reduced neutralization of SARS-CoV-2 B.1.617 by vaccine and convalescent
serum. Cell [Online]. Available at: https://www.sciencedirect.com/science/article/pii/S0092867421007558 [Last
accessed: June 2021]
Emary, Katherine RW. et al.
Efficacy of ChAdOx1 nCoV-19 (AZD1222) vaccine against SARS-CoV-2 variant of
concern 202012/01 (B.1.1.7): an exploratory analysis of a randomised controlled
trial. The Lancet. Available at: https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(21)00628-0/fulltext [Last
accessed: June 2021]
Public Health England. Vaccines
highly effective against hospitalisation from Delta variant. [Online].
Available at: https://www.gov.uk/government/news/vaccines-highly-effective-against-hospitalisation-from-delta-variant [Last
accessed: June 2021]
https://www.indiatoday.in/world/story/astrazeneca-pfizer-vaccines-delta-kappa-covid-19-variants-study-1818519-2021-06-23
http://timesofindia.indiatimes.com/articleshow/83775414.cms?utm_source=contentofinterest&utm_medium=text&utm_campaign=cppst
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