Tamil Nadu Serosurvey outcome: 66.2 pc antibodies, 2-fold increase since Oct 2020,

Chennai:  The Tamil Nadu  Directorate of Public Health and Preventive Medicine has conducted a Serosurvey which indicated that 66.2% of the Southern Indian state’s population has developed antibodies to Covid-19.  According to the Health Department, 17,624 individuals had IgG antibodies against the SARS-CoV-2 Virus, which causes COVID-19.  The highest seropositivity of 84% was observed in Virudhunagar district and the lowest of 37% was in Erode district. 

The presence of antibodies in the bloodstream shows that a person has either been infected with COVID-19 and developed antibodies to fight the virus or that the effect of vaccination is reflecting. Based on tests across 70 districts in 21 states, the 4th National Serosurvey by the ICMR also says that nearly 2/3rds of the general population has antibodies against COVID-19. 

The random blood tests which was done in July 2021, covered 26,610 persons across urban and rural areas of Tamil Nadu. The latest survey results showcase a steep increase in antibodies in the state’s population, as the current 62% is up from the 31% seen in Oct/Nov2020 and the 29% seen in April 2020.

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