‘Study on covid vaccines’ efficacy soon’
The study will find out why people have been contracting covid even after taking booster shots , said Pragya Yadav, the NIV scientist who isolated the first SARS-CoV2 virus in 2020.
Asked if there’s a need for a 4th dose, Yadav said in an interview, “Before we talk about 4th dose, we should enhance coverage of 3rd precautionary dose to enhance the immune response." Only about 228.7 million Indians have received the third dose—the booster shot—so far.…