Identification of transmission chains and clusters associated with COVID-19 in Tunisia.

Background: The aim of this study was to characterize the transmission chains and clusters of COVID-19 infection in Tunisia.

Methods: All cases were confirmed by Reverse Transcriptase Polymerase Chain Reaction of a nasopharyngeal specimen. Contact tracing is undertaken for all confirmed cases in order to identify close contacts that will be systematically screened and quarantined.