Haryana will start the state’s third round of sero survey on Tuesday to determine the prevalence of coronavirus antibodies in people, including children aged 6 years and above. Also read | Sero survey will help in building strategy on Covid vaccination: ExpertsHere’s what you need to know about sero survey:How is it done? Blood samples are taken from randomly selected people as part of the sero survey to study the scale of undetected infections. Also read | More antibodies in women to fight Covid-19: BMC sero surveyThe first sero survey conducted in May last year found the infection rate to be 0.73% nationally. When will the fourth national sero survey start?

Source: Hindustan Times June 15, 2021 01:38 UTC