Israel will give a third shot of the COVID-19 vaccine to the over-60s from Sunday.
It'll be the first country to give a third shot of the Pfizer vaccine as it tries to slow the spread of the Delta variant.
Seniors who had their second shots at least five months ago will be eligible.
President Isaac Herzog will be the first to get it on Friday.
Experts are divided on whether a third dose will do much to help, and have expressed concern it could also impact already low global vaccine supplies.