Abstract

According to a report by the Israeli Health Ministry, the efficacy of the US pharma giant Pfizer’s Covid-19 vaccine in preventing infection has dropped to 39 per cent. This efficacy figure is based on testes carried on between June 20 and July 17 (numbers not specified) is down from an earlier estimate of 64% two weeks ago. The Delta variant across Israel - show that those fully vaccinated have only a 40.5 per cent chance of avoiding symptomatic COVID. The delta strain of the COVID virus, however, reportedly appears to be responsible for the surge in cases around the country despite Israel’s rapid inoculation campaign that saw over 5.7 million Israelis receive the first jab, and over 5.2 million receive the booster shot as per this report from Times of Israel [1]. India has reported a little over 26,000 cases of Adverse Events Following Immunisation (AEFI) and 488 deaths linked to post-vaccination complications between January 16 and June 7, according to government data accessed by CNN-News18. Reports exist that this efficacy of these vaccines is not more than 9 months and revaccination may be needed thereafter [2].