The Pfizer vaccine is slightly less effective. But it appears to still protect against the more contagious coronavirus found in India. From 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 variants found in India, according to laboratory 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 showed a threefold decrease in antibodies to the B.1.617 variant, but remained protected.
“The situation is different with the AstraZeneca vaccine, which induces particularly low levels of antibodies,” the variant said, the study said.
Patients infected with COVID-19 In the past year and people who received 2 doses of Pfizer vaccine still have enough antibodies to protect against variants found in India. But it has three to six times fewer antibodies than the British tinder. 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