Study suggests Pfizer's COVID-19 vaccine less effective against South African variant The Pfizer-BioNTech COVID-19 vaccine may be less able to protect against infection with a South African variant of the virus that has a worrying mutation, according to results of a British study released on Tuesday. Kate Kelland U.S.

LONDON (Reuters) - The Pfizer-BioNTech COVID-19 vaccine may be less able to protect against infection with a South African variant of the virus that has a worrying mutation, according to results of a British study released on Tuesday.

Dr. James Lawler, a former White House official who predicted 480,000 U.S. COVID deaths last February, now says we could see “several hundred thousand” more.

Covid-19 update: Latest coronavirus vaccine and world news The coronavirus pandemic has brought countries to a standstill. Meanwhile, vaccinations have already started in some countries as cases continue to rise. Follow here for the latest. By Nectar Gan, Adam Renton and Kara Fox, CNN CNN

Even if you've had coronavirus,  there's a "very high rate" of being reinfected with the new variants if they become dominant, Dr. Anthony Fauci says.