Syndromic surveillance summary: 19 April 2026 week 16
Updated 23 April 2026
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Reporting week 16: 13 April to 19 April 2026
In week 16, there were decreases in both acute respiratory infections and gastroenteritis indicators across all syndromic surveillance systems. GP consultation rates for allergic rhinitis stabilised and were similar to expected levels.
Remote health advice syndromic surveillance system
During week 16, NHS 111 acute respiratory infection triaged calls and online assessments continued to decrease nationally and remained below seasonally expected levels. Triaged calls and assessments for diarrhoea and vomiting also decreased.
Access the remote health advice syndromic surveillance bulletins
GP in-hours syndromic surveillance system
During week 16, GP in-hours consultation rates for most acute respiratory infection indicators continued to decrease. Consultation rates for gastroenteritis indicators (including diarrhoea and vomiting) also decreased. Allergic rhinitis consultation rates stabilised and were similar to expected seasonal levels.
Access the GP in-hours syndromic surveillance bulletins
GP out-of-hours syndromic surveillance system
During week 16, GP out-of-hours daily contacts for acute respiratory infection and difficulty breathing indicators decreased with activity similar to or below seasonally expected levels.
Access the GP out-of-hours syndromic surveillance bulletins
Emergency department (ED) syndromic surveillance system
During week 16, ED attendances for acute respiratory infections continued to decrease, with activity now below seasonally expected levels.
Access the emergency department syndromic surveillance bulletins
Ambulance syndromic surveillance system
During week 16, daily numbers of ambulance calls for headache stabilised nationally, after a recent period of decrease.