Pfizer's vaccine 'significantly less' effective against Delta variant

Israeli government says Pfizer’s COVID-19 vaccine provides ‘significantly less’ protection against the Indian ‘Delta’ variant than health officials had hoped Israel says the Pfizer-BioNTech COVID-19 vaccine is ‘weaker’ against the Indian ‘Delta’ variant and provides ‘significantly less’ protection than hoped The country, which once led the world in the vaccine race, […]