A questionnaire was developed to collect socio-economic, demographic, behavioral, and infection prevention practices information from the enrolled participants (Table 1). Socio-economic status was documented as per the modified Kuppuswamy index [5]. More than three individuals residing in one room were considered as overcrowding [6]. In India, ICMR, the national regulatory authority, has recommended prophylaxis with hydroxychloroquine for workers who are at occupational risk of acquiring this infection [7]. Therefore, the healthcare workers were enquired about the use of hydroxychloroquine for prophylaxis against COVID-19. The prophylactic use of other medications (alternative medicines) was also recorded from the study population.