Pfizer and AstraZeneca vaccines proved highly effective against the Indian variant of Covid after two doses of the product. This was revealed by a study by the British health authorities, reports the BBC, specifying that with the second dose the two vaccines ensured a level of protection against the symptoms of the disease of the Indian variant equal to that recorded for the English variant. However, the two vaccines proved to be only 33% effective against the Indian strain three weeks after the first injection, compared to 50% effective against the English one. The Pfizer vaccine was found to be 88% effective in stopping the symptomatic disease of the Indian variant two weeks after the second dose, compared to 93% guaranteed compared to the variant that emerged in Kent. Astrazeneca revealed an efficacy of 60% against the Indian variant, 66% against the British one, therefore lower percentages but which may derive from the fact – according to the authors of the study – that the inoculations of the second dose of Astrazeneca started later than to those of Pfizer, which had received approval earlier.
