Pfizer vaccine efficacy

The researchers warn that with Lambda being labeled a "Variant of Interest" by the WHO, rather than a "Variant of Concern," people might not realize it is a serious ongoing threat.

"The study shows that fourteen days after a combined vaccination program, the risk of infection with SARS-CoV-2 is reduced by 88% compared to unvaccinated individuals," the State Serum Institute said

An Israeli study claims the vaccine is 40% effective, while a British one says 88%. Both studies could be correct. Here is why:

Israelis have been almost exclusively vaccinated with the Pfizer vaccine. So far, some 5.7 million Israelis have had at least one shot.

A Spanish study found the Pfizer-AstraZeneca combination was highly safe and effective, according to preliminary results.

The US Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC) said that Americans who have been fully vaccinated do not need a booster COVID-19 shot at this time.

Green passports in Israel are granted to all those who are fully vaccinated or recovered from the virus.

"A likely scenario is that there will likely be a need for a third dose somewhere between six and 12 months [after the initial vaccination] and from there, there will be an annual revaccination."

Fauci explained that the while the S. African variant can break through the vaccines, they are still effective at preventing serious illness and death.

While infection risks for vaccinated people have shown to decrease substantially after vaccination, certain variants have already been found to have mutated enough to decrease the vaccine's efficency