SARS-CoV-2, the virus that causes covid-19, may have protection against future infection for a few months, a research published in the JAMA Internal Medicine showed.The findings could have important public health implications, including decisions about returning to physical workplaces and schools, and prioritising vaccine distribution.Also Read | The limits to India’s privatization pushResearchers from the National Institutes of Health, US, in collaboration with two health care data analytics companies, HealthVerity and Aetion, Inc, and five commercial laboratories obtained antibody test results for more than 3 million people who had a SARS-CoV-2 antibody test between January 1 and August 23, 2020.This represented more than 50% of the.