Vaccine efficacy

Covid-19: Vaccine Works as Good in 'Real world' as in Trial in Israel

More data from Israel's vaccination programme is suggesting the Pfizer vaccine prevents 94% of symptomatic infections.

This indicates the vaccine is performing just as well in a larger population as it did in the clinical trials.

It is proving highly effective at preventing illness and severe disease among all age groups, according to public health doctor Prof Hagai Levine.

Coronavirus/Health Ministry: What 95% vaccine effectiveness means - 20 times lower risk to develop symptomatic COVID-19

The Health Ministry explained on Monday that a 95% effectiveness of a vaccine against the new coronavirus means that, compared to an unvaccinated person, an immunized person has a 20 times lower risk of developing symptomatic COVID-19.