Covid antibodies in 66% population in TN: Survey
July 31, 2021  16:46
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The third Tamil Nadu Cross Sectional Serosurvey in July, covering over 26,000 samples revealed that atleast 66.2 percent of the population has developed antibodies to SARS-CoV-2, the virus which causes covid-19.
    
Among the 26,610 samples tested, 17,624 individuals had IgG (Immunoglobulin G) antibodies against SARS-CoV-2
virus.
   
While the overall seroprevalence was 66.2 percent, the highest seropositivity was observed in Virudhunagar district at 84 per cent while Erode in west Tamil Nadu reported the lowest at 37, according to the latest serosuvrey conducted by the Directorate of Public Health and Preventive Medicine in 888 clusters across the state.
    
It was released by state Minister for Medical and Family Welfare Ma Subramanian in the presence of Principal Health Secretary Dr J Radhakrishnan and Director of Public Health and Preventive Medicine Dr T S Selvavinayagam, on Saturday.
    
In the earlier state-wide serosurveys conducted by DPH&PM, the seropositivity was 31 percent in October/November 2020, and 29 percent (in the second conducted in April 2021).
   
The overall seropositivity of 66.2 percent detected during the third survey could be attributed to various possible reasons including the timing of serosurvey conducted during the declining phase of the covid second wave in Tamil Nadu, it said.
     
-- PTI
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