Seroprevalence of SARS-CoV-2 in slums versus non-slums in Mumbai, India
November 13, 2020
Malani A, Shah D, Kang G, et al.
Lancet Global Health
Malani et al conducted a study to estimate the seroprevalence of SARS-CoV-2 in six slum and non-slum communities in Mumbai, India from June 29 to July 19, 2020. A total 4,202 samples from slums and 2,702 samples from non-slums were collected. Samples were provided by women and men from four different age strata, age 12 and up, and were tested for IgG antibodies. 54.1% of samples from slums were estimated to be positive for IgG antibodies as compared to 16.1% in non-slums, and positive test proportions in both age and sex were higher in slums compared to non-slums. Proportions were also higher amongst women compared to men in both slums and non-slums. The authors suggest that there is higher asymptomatic spread of disease in slums, most likely as a result of population density, lack of social-distancing, and poor hygiene.
Malani A, Shah D, Kang G, et al. Seroprevalence of SARS-CoV-2 in slums versus non-slums in Mumbai, India. Lancet Glob Heal 2020; 0. DOI:10.1016/S2214-109X(20)30467-8.