Infection prevention and control in the workplace

Under the Public Health Act (2010), there are a number of infections that must be reported.

If one of these infections is suspected or confirmed, the GP (or other health professional) must notify Public Health Wales (PHW) and/or the local authority environmental health team to investigate.

They will identify anyone who may have been exposed or infected and provide advice on reducing the risk of transmission, which may include in the workplace.

You may need to provide information to help with contact tracing if an employee – or the close contact of an employee, contractor or visitor to a work site – becomes infected or has been exposed to a notifiable disease.

Find out more about notifiable diseases and how to report them.

Page last reviewed: 24th August 2026