A booster shot of the covid vaccine adds significant protection against infection and severe illness, Israeli officials have found.
The results from an analysis by the Health Ministry of the effects of a third Pfizer jab have given new hope as Israel battles against the Delta variant that is sweeping the world.
The study looked at over-60s – who were first to get the vaccine in December, as Israel’s pioneering inoculation roll-out got going.
After a renewed surge of infections blamed on the Delta variant and with levels of immunity found to be falling in some patients, Israel began to administer a third shot to the over-60s last month.
