BENGALURU, Sept 29 — A second serological survey conducted in India in August and September showed a large percentage of India’s population had not been exposed to the novel coronavirus, although the prevalence of infection in adults increased, a government official said today.

Blood samples collected from more than 29,000 adults between Aug. 17 and Sept. 22 showed that the prevalence of SARS-CoV-2 antibodies increased to 7.1 per cent compared to 0.73 per cent in the previous survey, the director general of the Indian Council of Medical Research said in a press briefing. — Reuters