COVID-19 vaccines prevented over 42 lakh potential deaths in India in 2021, said a study published in The Lancet Infectious Diseases journal, which based its findings on estimates of “excess” mortalities in the country during the pandemic.Globally, the mathematical modelling study found that COVID-19 vaccines reduced the potential death toll during the pandemic by nearly 20 million (1 million = 10 lakhs) or more than half in the year…