Infectious disease transmission: survey of contacts between hospital-based healthcare workers and working adults from the general population.

Background: Healthcare workers (HCWs) may be the inadvertent interface between the healthcare setting and the community for infectious diseases transmission.

Aim: To investigate HCWs' contacts during a work day and compare these against working adults from the general population.

Methods: Prospective survey of contacts through 24 h self-reported diary in three public sector tertiary care hospitals and community-based working adults in Singapore.