Syndromic surveillance summary: 27 March 2025 week 12
Updated 3 April 2025
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Reporting week 12: 17 March to 24 March 2025
During week 12, most acute respiratory infection syndromic indicators remained stable overall or increased slightly, with slight increases in healthcare contacts in children aged below 15. Gastroenteritis indicators (including diarrhoea and vomiting) were largely stable overall; however increases were observed in the 5 to 14 years age group.
Remote health advice syndromic surveillance system
In week 12 NHS 111 triaged calls and online assessments for acute respiratory infections increased but remained below baseline levels. NHS 111 triaged calls and online assessments for diarrhoea increased and are at levels above those expected for the time of year. There was an increase in diarrhoea and vomiting triaged calls and online assessments noted in the 5 to 14 years age group.
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GP in-hours syndromic surveillance system
During week 12, GP in-hours consultation rates for upper respiratory tract infections remained stable overall; however, there was an increase in consultations observed in children aged under 15 years. Gastroenteritis, diarrhoea and vomiting indicators were broadly stable and continued to remain above expected levels. Consultations for chickenpox increased at the beginning of week 12 but decreased afterwards and remained above baseline.
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GP out-of-hours syndromic surveillance system
During week 12, GP out-of-hours contacts for acute respiratory infections and difficulty breathing, wheeze and asthma increased slightly, particularly among those aged 5 to 14 years.
Contacts for vomiting rose in children aged 1 to 4 and 5 to 14. Similarly, contacts for gastroenteritis increased among those aged 5 to 14.
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Emergency department syndromic surveillance system
During week 12, emergency department (ED) attendances for acute respiratory infections increased slightly while influenza-like illness continued to decrease. Asthma attendances continued to increase, particularly in the 5 to 14 years age group, but overall activity remained below levels expected for the time of year. Gastroenteritis attendances increased slightly during week 12, particularly in the 5 to 14 years age group.
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Ambulance syndromic surveillance system
During week 12, ambulance calls for difficulty breathing showed a slight increase but remained at seasonally expected levels. Calls for headache, unconscious or passing out and overdose increased slightly but also remained either at seasonally expected levels or below seasonally expected levels.