Updated On: 01 September, 2020 05:01 PM IST | New Delhi | PTI
According to the scientists, the samples collected from late May till July represented a higher proportion of asymptomatic cases when compared to samples collected earlier.

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Indian scientists have observed a higher association between asymptomatic COVID-19 cases and viral load, or the amount of virus in an infected person's bodily fluid, in a study of over 200 patients with SARS-CoV-2 virus in Telangana, a "surprise" finding that may better inform the policymakers about the spread of the novel coronavirus infection.
The researchers, including those from the Centre for DNA Fingerprinting and Diagnostics (CDFD) in Hyderabad, advise testing asymptomatic primary and secondary contacts followed by surveillance.
"It is important to consider the possibility of infection from asymptomatic patients -- presumably harbouring good immunity -- spreading into individuals possessing not so robust immunity leading to increased morbidity and mortality," Murali Dharan Bashyam, from CDFD's Laboratory of Molecular Oncology, told PTI.