Pfizer vaccine only 39% effective at preventing Delta variant infection, says Israel govt

In a worrying trend, a recent study by Israeli health ministry on Friday, revealed that Pfizer’s Covid-19 vaccine is less effective at preventing infection and symptomatic cases from Delta variant of Coronavirus (COVID-19). study stated that Pfizer-BioNTech vaccine was 39% effective at preventing infections and 41% effective at preventing symptomatic infections from Delta variant, which is lower than early estimates of 64%. Pfizer is currently seeking US CDC's approval for a booster dose for those vaccinated.

Pfizer vaccine 39% effective against Delta variant

study did reveal that vaccination provided 92% protection against hospitalization and 91% protection against severe illness caused by Delta variant, ministry said. Israel has already allowed a booster shot of Pfizer vaccine to adults with weak immune systems. Delta variant, which was first detected in India, has sent vaccination rates in Israel back up as new infections have risen over past month from single digits to around 450 a day. Israel’s Health Minister Nitzan Horowitz anunced that adults with impaired immune systems who had received two doses of Pfizer vaccine could get a booster shot, with a decision pending on wider distribution - inspite of US and UK t giving d.

Pfizer: 'Third jab needed'

Pfizer is currently seeking emergency use authorization by US Food and Drug Administration (FDA) for a COVID-19 booster dose in August, said company in a statement. Based on data from a recent study, Pfizer said that its vaccine showed strong neutralization against Delta variant after two doses. It anticipates that antibodies will be higher after a third dose and are performing clinical trials to determine same. Hours later, US govt bodies - FDA, CDC, and NIH ( National Institutes of Health) issued a joint statement saying that "Americans who have been fully vaccinated do t need a booster shot at this time".

Pfizer & Moderna vaccine 91% effective

In July, a US study revealed that Pfizer and Moderna vaccines are 91% effective in fighting against COVID-19 virus. 91% effectiveness will be seen after two weeks of second jab.   result stated that only 5 %(204) participants have tested positive for SARS-CoV-2, out of which, 156 were t vaccinated, 32 had indeterminate vaccine status and 16 were completely or partially vaccinated. presence of fever was reduced by 58% in those who still got infected and need for bed during sickness was reduced by 60% only.  From around nine to three days, detection of virus was decreased by 70%. Also, virus becomes very less transmissible to ors, after getting fully or partially vaccinated with Pfizer or Moderna.