ISLAMABAD, August 23 (online): A new study suggests that T cells might provide individuals who had a mild or asymptomatic case of COVID-19 with lasting immunity against future infection, even if their blood contains no neutralizing antibodies. Most people who are exposed to SARS-CoV-2, the coronavirus that causes COVID-19, only experience mild symptoms or none at all. However, the infection can still pass from them to other people, and the overall case fatality rate appears to be converging on 0.5–1.0%. It is, therefore, important to establish whether individuals who have contracted the virus once can contract it again and become contagious, or whether they are immune to future infection. The new research, Buggert and his colleagues investigated the immune status of 206 individuals in Sweden, where measures to control the spread of SARS-CoV-2 have been less strict than in other European countries. Their participants fell into five categories: people with ongoing moderate or severe COVID-19 individuals convalescing after a mild or severe infection asymptomatic family members exposed to the infection healthy individuals who donated blood during the pandemic healthy individuals who donated blood in 2019, before the pandemic Father arrested for selling his daughters for Lakhs Stay tuned to Baaghi … Continue reading Even mild COVID-19 may produce long lasting immunity