Fourth dose of covid vaccine reduces mortality by 78%, according to Israeli study

The fourth dose of Pfizer’s vaccine against COVID-19 reduces the risk of death from the virus by almost 80%, reveals a study by the Israeli mutual Clalit based on data from more than half a million people between the ages of 60 and 100.

“Among the recipients of the fourth dose of the vaccine, a 78% reduction in the mortality rate from COVID-19 was observed, compared to the group that was not vaccinated” with the reinforcement, confirmed the investigation of Clalit, the main health provider among the four Israeli mutuals in charge of vaccination.

The study, of preliminary type, was carried out by the Department of Community Medicine of Clalit together with two Israeli academic centers. It was done between last January and February -with the Omicron variant already dominant- and examines the mortality rates between the population that (or second booster dose) and those who only received a third injection.

Given the spread of the contagious Omicron, Israel began vaccinating people over 60 years of age with the fourth dose at the beginning of January, and today there are more than 747,000 people who received this booster.

At this point, l, but there is concern among health authorities because in recent weeks it has been slightly increasing.

Israel, with a population of some 9.4 million inhabitants, was leaving behind the wave of infections by Omicron in mid-February, and opted for vaccination to deal with it.