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Pfizer jab less effective, still protects against Indian stress: study


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The results of a study by the Institute of Pasteur in France indicate that The Pfizer vaccine is slightly less effective. But it appears to also protect against the more contagious Indian strain that causes COVID-1


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 Indian variant B.1.617, 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 2 doses of the Pfizer vaccine still have 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 China in late 2019, the SARS-CoV-2 virus that causes COVID-19 has developed strains, 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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More information:
Delphine Planas et al, reduced the sensitivity of the B.1.617.2-infected SARS-CoV-2 variant to monoclonal antibodies and serum from convalescent and vaccinated individuals. BioRxiv (2021). doi: 10.1101/2021.05.26.445838

© 2021 AFP

reference: Pfizer ram is less effective. Still Protects Indian Strain: Study (2021, 29 May). Retrieved 29 May 2021 from https://medicalxpress.com/news/2021-05-pfizer-jab-efficient-indian-strain. .html

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