COVID-19 Transmission Dynamics Among Close Contacts of Index Patients With COVID-19

Much remains unknown about the transmission dynamics of COVID-19. How the severity of the index case and timing of exposure is associated with disease in close contacts of index patients with COVID-19 and clinical presentation in those developing disease is not well elucidated.To investigate the association between the timing of exposure and development of disease among close contacts of index patients with COVID-19 and to evaluate whether the...