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66.2 pc TN population has COVID antibodies: Serosurvey
The third Tamil Nadu Cross Sectional Serosurvey in July, covering 26,610 samples revealed that atleast 66.2 per cent of the population has developed antibodies to SARS-CoV-2. Among the 26,610 samples tested, 17,624 individuals had IgG (Immunoglobulin G) antibodies against SARS-CoV-2 virus.
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Chennai
While the highest seropositivity was found in Virudhunagar at 84 per cent, the lowest (37%) was reported in Erode. Chennai’s was at 82 per cent, according to the latest serosurvey conducted by the Directorate of Public Health and Preventive Medicine in 888 clusters across the State.
The overall seropositivity of 66.2 percent could be attributed to variouspossible reasons, including the timing of serosurvey conductedduring the declining phase of the COVID second wave in TamilNadu, the report said. “Intense vaccination drives from
January 16 and inclusion of 18+ age individuals would have generated protective antibodies in the population. As on June 10, 2021, 97.6 lakh people got vaccinated (either single or double dose),” the survey report said.
Data From Analysis Done In July
Western districts like Erode, Coimbatore and Tirupur reported around 45 percent seropositivity which could be attributed to the consistent reporting of new cases in these regions, it said.
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