Health Ministry says 9,726 people tested positive for COVID on Saturday, with in infection rate standing at 23.7%; number of seriously ill drops below 300; new study finds 4th booster reduces risk of death from coronavirus by 78%

Clalit Health Services study includes more than half a million people aged 60-100, 58% of whom had received a second booster, or two shots in addition to the basic two-shot regimen; remaining 42% received only one booster

Prof. Nachman Ash reserves that number still on the rise despite positive change of trend, says second vaccine booster shot 'much less effective and lasts for a shorter time' than previous doses