Research and analysis

Syndromic surveillance summary: 23 October 2025 week 42

Updated 24 October 2025

Reporting week 42: 13 October to 19 October 2025

During week 42 there were continued increases in acute respiratory infection indicators which were in line with seasonal expectations and seen in the child age groups (1 to 14 years) in particular. There were further increases in influenza-like illness indicators in the GP in hours and emergency department (ED) systems, particularly in child age groups (1 to 14 years), while COVID-19-like indicators decreased.

Remote health advice syndromic surveillance system

During week 42, NHS 111 acute respiratory infection triaged calls continued to increase slightly, mainly in children aged 1 to 14 years with other age groups remaining stable.

Access the remote health advice syndromic surveillance bulletins

GP in hours syndromic surveillance system

During week 42, GP in hours consultation rates for upper and lower respiratory tract infection continued to increase. Consultations for influenza-like illness continued to increase, particularly in children aged 5 to 14 years, while COVID-19-like consultations decreased. Consultations for bronchiolitis remained stable and are now below baseline. Consultations for diarrhoea increased, particularly in children aged up to 4 years.

Access the GP in-hours syndromic surveillance bulletins

GP out-of-hours syndromic surveillance system

During week 42, there was a slight increase in GP out-of-hours contacts for acute respiratory infection, particularly in children aged 1 to 14 years. Contacts for acute bronchitis/bronchiolitis continued to increase but remained similar to seasonally excepted levels.

Access the GP out-of-hours syndromic surveillance bulletins

Emergency department syndromic surveillance system

During week 42, acute respiratory infection ED attendances increased slightly, due to continued increases in children aged 1 to 14 years. Influenza-like illness attendances also increased in children, particularly those aged 5 to 14 years. Attendances for scarlet fever remained above baseline and continued to increase, as expected at the time of year.

Acute bronchiolitis attendances remained stable and below seasonally expected levels. COVID-19-like attendances decreased sharply nationally.

Access the emergency department syndromic surveillance bulletins

Ambulance syndromic surveillance system

During week 42, daily ambulance calls for ‘difficulty breathing’ remained stable. Access the ambulance syndromic surveillance bulletins