Shashi Tharoor @ShashiTharoor
Hope rises that India may be developing "herd immunity" to #Covid19: https://t.co/jJAA7HKBcI BUT 3 caveats are important: Surveys in a country like India shld be treated with caution;we don't know the quantum of antibodies that confers immunity;&don't know how long it will last. — PolitiTweet.org