Manoj Mohanan, PhD¹; Anup Malani, PhD²; Kaushik Krishnan, PhD³; Anu Acharya, MS⁴

Low- and middle-income countries contain the majority of confirmed cases of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). India has the second-highest number of reported cases, but most seroprevalence estimates come from cities. Cities, with denser population, are more vulnerable to SARS-CoV-2. However, millions of city workers fled to rural India where lockdown was less stringent.

We assessed SARS-CoV-2 prevalence among volunteers from population-representative households in urban and rural areas of the state of Karnataka (population, 67.5 million).

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