Week into trial, Bennett claims 4th vaccine shot provides major immunity boost

https://www.timesofisrael.com/week-into-trial-bennett-claims-4th-vaccine-shot-provides-immunity-boost/ 

The fourth Pfizer vaccine shot causes a significant boost in antibodies within a week after taking it, according to interim data from Israel’s landmark study on the matter made public Tuesday by Prime Minister Naftali Bennett.

Bennett heard the partial results during a tour of Sheba Medical Center near Tel Aviv, telling reporters that a week after receiving the fourth dose, recipients had almost five times more COVID-19 antibodies in their blood.

However, since the trial began just a week earlier, there is no data on whether the number of antibodies maintains itself over time after the first week, or whether the antibodies provide better protection against catching — or developing serious illness from — the Omicron variant, which has shown an ability to break through other vaccine defenses.