Israeli study: Pfizer vaccine can be effective by 75% with only one injection.

According to a report on Nikkei on the 20th, the results of a study published in the Lancet by Sheba Medical Center in

Israel on the 18th showed that a survey of medical personnel vaccinated against

Pfizer found that 15-28 days after the first injection was completed.

After that, it has an 85% preventive effect on symptomatic viral infection, and 75% of the prevention effect, including asymptomatic.

The vaccine needs to be vaccinated twice every 21 days, and the preventive effect after two vaccinations can reach 95%.