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Pfizer jabs are still less effective at preventing stress from India, study shows



The medical staff prepares the vaccine. Pfizer-BioNTech COVID-19 in Saint-Nazaire As part of the coronavirus vaccination campaign in France 28 May 2021 Stefan Mahe Reuter

The Pfizer vaccine is slightly less effective. But it appears to also protect against the more contagious strain of Indian virus that causes COVID-19. According to a study by the Institute of Pasteur of France.

Olivier Schwartz, institute director and co-author of the study, published on the BioRxiv website, said: But the Pfizer vaccine may protect”

; from the Mohawk variant, according to lab test results.

The study randomized 28 healthcare professionals in Orleans. Sixteen people received two doses of the Pfizer vaccine, while 12 received one dose of the AstraZeneca vaccine.

Those who received two doses of Pfizer experienced a threefold decrease in their antibodies compared to the B.1.617 variant, according to the study, but were still protected.

“The situation is different with the AstraZeneca vaccine, which induces particularly low levels of antibodies,” the Indian variant said.

Patients infected with COVID-19 in the past year And people who received two doses of the Pfizer vaccine still had enough antibodies to protect against the Indian variant. But it has three to six times fewer antibodies than the UK vaccine. said Schwartz.

The study showed that “this variant … gained some resistance to the antibody,” Schwartz said.

Since it first emerged in late 2019 in China, the SARS-CoV-2 virus that causes COVID-19. has developed many different species, often named after the place where it first appeared. including the species known as South Africa and the United Kingdom.

The variant first detected in India appears to be much more contagious than the previous form.

It is now officially recorded in 53 territories, according to the World Health Organization.

to try to control the spread France and Germany have re-introduced tougher rules for passengers arriving from affected countries. including the United Kingdom

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