Study design
BLIND
In this randomized control double blind clinical trial, asymptomatic individuals with direct contact with laboratory-confirmed COVID-19 cases were screened for enrolment according to the inclusion and exclusion criteria and randomized into PEP/HCQ and control/placebo group after getting written informed consent. The participants were family members, relatives, friends or colleagues who were living with or spent hours/days with COVID-19 patients without following any personal protective measures