Coronavirus: The idea of attaining herd immunity through natural infection to fight against Covid is “foolish” as there are huge costs to be paid, Chief Scientist at the World Health Organisation Dr Soumya Swaminathan told NDTV today, adding that the…

If you had COVID-19 do you still need the vaccine? How long should you wait after recovery to get vaccinated? What do we know about natural immunity vs vaccine induced immunity? WHO’s Chief Scientist Dr Soumya Swaminathan explains in Science…