Syndromic surveillance summary: 15 March 2026 week 11
Updated 19 March 2026
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Reporting week 11: 9 March to 15 March 2026
During week 11 there were small increases in activity observed across a number of acute respiratory infection indicators in children aged up to 14 years, however activity remained at or below seasonally expected levels. The GP in-hours consultation rate for measles was stable during week 11 but remained above seasonally expected levels.
Remote health advice syndromic surveillance system
During week 11, NHS 111 acute respiratory infection triaged calls and online assessments remained stable overall, but with some small increases observed in children aged 1 to 14 years. There was an increase in NHS 111 online assessments for vomiting, however assessments remained below baseline levels.
Access the remote health advice syndromic surveillance bulletins
GP in-hours syndromic surveillance system
During week 11 there were small increases observed in GP in‑hours consultation rates for upper and lower respiratory tract infections in children aged 1 to 14 years; rates continued to decrease in those aged over 15 years. Scarlet fever consultation rates increased but are still below expected levels. The consultation rate for measles was stable during week 11 but remained above baseline levels.
Access the GP in-hours syndromic surveillance bulletins
GP out-of-hours syndromic surveillance system
During week 11, GP out-of-hours daily contacts for gastroenteritis and vomiting continued to decrease nationally. Daily acute respiratory infection contacts were stable overall, however there were small increases in children aged 1 to 14 years.
Access the GP out-of-hours syndromic surveillance bulletins
Emergency department syndromic surveillance system
During week 11 there were small increases observed in COVID-19-like, acute respiratory infection and acute bronchiolitis indicators, particularly in children aged under 15 years old, however activity in these indicators remained below seasonally expected levels. ED attendances for scarlet fever increased, mainly in the 1 to 4 and 5 to 14 years age groups and remained above levels expected for this time of year.
Access the emergency department syndromic surveillance bulletins
Ambulance syndromic surveillance system
During week 11, daily ambulance calls for difficulty breathing were stable and below expected levels. Other syndromic indicators were stable or decreasing.