Israeli data shows 50% reduction in infections 14 days after first vaccine shot


Initial data from Israel’s vaccination campaign shows that Pfizer’s coronavirus vaccine curbs infections by some 50 percent 14 days after the first of two shots is administered, a top Health Ministry official said Tuesday, as the country’s serious COVID-19 cases, daily infections and total active cases all reach all-time peaks.

Sharon Alroy-Preis, head of the Health Ministry’s public health department, told Channel 12 News that the data was preliminary, and based on the results of coronavirus tests among both those who’ve received the vaccine and those who haven’t.

The vaccine is only expected to reach full protection potential a week after the administration of the second dose of the vaccine, which began in Israel this week. The second dose is expected to bring immunity level to some 95% after about a week.

Earlier, Alroy-Preis said that nearly one-fifth of over 1,000 current serious COVID-19 patients had previously received the first dose of Pfizer’s vaccine — stressing the need to continue to protect oneself after receiving the shot.