In Andhra, the reports of sero-surveillance have shown that very few percent of people were infected by the virus. The second phase of the study in the state which was carried out in nine districts of the state has ended, and the results of the study have been revealed publically. About Sero-surveillance, then it is a standard method used to measure the level of antibodies in the population due to a certain infection. Experts state that indicating the presence of antibodies in people plays an important role in stopping a further surge in infections. While the first phase was carried out in four districts, the second phase comprised nine districts. With this, the sero-surveillance survey has covered all 13 districts of the state.  

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Four districts namely East Godavari, Krishna, Nellore and Anantapur were covered in the first phase of the serosurvey. The first period was carried out from August 5 to August 15. The second phase was conducted around 10 days later from August 26 to August 31. In the second phase, samples of Srikakulam, Vizianagaram, Visakhapatnam, West Godavari, Guntur, Prakasam, Kadapa, Chittoor and Kurnool were taken. Krishna district saw the highest seroprevalence in the first phase, with around 20.7% of the district population found to have been exhibited to the SARS-CoV-2 virus. 

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However, Vizianagaram and Kurnool districts have revealed much higher levels of infection in the second phase.  According to the overall results (the average of the two phases), 19.7% of the population has been exposed to the coronavirus so far.  Overall, the prevalence among the high-risk population (persons who are at greater risk of suffering severe illness on contracting COVID-19) was slightly higher than the general average, with a predominance of 20.3% among them. 

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