Hyderabad: The second round of ICMR-National Institute of Nutrition (NIN) sero-surveillance in Jangaon, Nalgonda and Kamareddy conducted on August 26 and 27 has indicated that the Covid-19 epidemic was spreading at a slow pace in the three districts.
Overall, NIN researchers had collected blood samples of 1,309 persons from the three districts out of which 12.2 per cent had developed antibodies for Covid-19. In its report on sero-surveillance, the NIN researchers said that due to precautionary measures taken by general public and State health authorities, the progress of the infection was slow.
However, only 12.2 per cent of the local population in these districts has developed antibodies against Covid-19 while the rest of the population i.e. 88 per cent continues to remain susceptible, the sero-surveillance report said. “Large numbers of people are still susceptible to SARS-CoV-2 infection, hence all appropriate personal protection measures like wearing mask, personal hygiene and social distancing may be continued,” the sero-surveillance report said.
The sero-prevalence study revealed that 83 persons tested positive for SARS-CoV-2 antibodies out of 454 people tested in Jangaon, which is 18.2 per cent, as against 0.5 per cent in the first round that was conducted in May. In Nalgonda, 47 persons tested positive for antibodies out of 422 persons, which is 11.1 per cent while during the first round in May, it was 0.25 per cent. Similarly, in Kamareddy, 30 persons were positive out of 433 persons, which is 11 per cent as against 0.25 per cent in the first round.
The survey, which was based on ICMR guidelines, covered 10 villages in each district and 16 households in each village were selected at random for the study. All the participants were aged above 10 years of age and overall the study covered 30 villages and 1,309 individuals in the three districts.
The survey was carried out by NIN scientists, including Dr Avula Laxmaiah, Dr B Dinesh Kumar, Dr N Arlappa, Dr JJ Babu, and other 50 scientific and technical staff from NIN apart from health authorities.
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