Home News “Pfizer vaccine preventive efficacy declines after delta mutation spread…94% → 64%”

“Pfizer vaccine preventive efficacy declines after delta mutation spread…94% → 64%”

by news dir

Israeli media YNet reported on the 5th that a study showed that the preventive efficacy of the Pfizer vaccine, which had reached 94% against the existing novel coronavirus, was much lower in the delta mutation.

According to statistics released by the Israeli Ministry of Health, from May 2 to May 5, Pfizer’s vaccine was 94.3% effective in preventing COVID-19.

However, from the 6th of last month to the 3rd of this month, the preventive efficacy of the Pfizer vaccine confirmed in the clinical trial fell to 64%.

In a comparison over the same period, Pfizer’s vaccine’s efficacy in severe prophylaxis fell from 98.2% to 93%, Wynet added.

About 55% of new infections during this period were ‘breakthrough’ cases of people who had been vaccinated.

The first delta mutation was confirmed in Israel on April 16, and since then, the delta mutation has spread rapidly among unvaccinated people.

According to the daily Haretz, about 90% of new infections in Israel are due to delta mutations.

.

Related Articles

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.