'Flu surveillance data for the UK is collected and reported by the Health Protection Agency, the Welsh Communicable Diseases Surveillance Centre (CDSC), the Scottish Centre for Infection and Environmental Health (SCIEH), the Communicable Disease Surveillance Centre (Northern Ireland), and the Royal College of General Practitioners Birmingham Research Unit (RCGP).

The 'flu surveillance service is updated each week throughout the main 'flu season (November to March). The aim is to provide a timely summary of 'flu activity in England, Wales, Northern Ireland and Scotland.

Click here to see the latest HPA Influenza Surveillance Report for the 2003/04 season