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May 23, 2021: Coronavirus vaccines Pfizer and Astrazeneca are "highly effective" after two doses against the variant identified in India, according to a British study conducted by Public Health England.
The Pfizer vaccine, the BBC reports, was found to be 88% effective in stopping symptomatic disease from the Indian strain two weeks after the second dose. Astrazeneca is 60% effective.
However, both vaccines are only 33% effective three weeks after a single dose.
In detail, the efficacy of the Pfizer vaccine, after two doses, is 88% in preventing symptomatic infections of the Indian variant and 93% in preventing symptomatic infections of the English variant.
In the case of AstraZeneca, efficacy drops to 60% and 66%, respectively, a difference, the study reads, which could be explained by the longer time taken by this vaccine to reach maximum efficacy and subsequent approval. Pfizer's drug, the second doses of which were injected first.
UK Health Minister Matt Hancock said the study's findings make him "increasingly confident" that the government could start Phase 4 of the removal of restrictions on June 21, which is the almost complete return to normal. . "The data show that the administration of both doses is absolutely vital," added Hancock.