Syndromic surveillance summary: 20 February 2025 week 7
Updated 27 March 2025
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Reporting week 10 February to 16 February
During week 7, most syndromic indicators for acute respiratory infections continued to decrease or remained stable. In general, influenza-like illness indicators decreased across the reporting week but remained above seasonally expected levels. Gastroenteritis indicators increased across all syndromic systems, including NHS 111 triaged calls and GP in-hours consultations for diarrhoea.
Remote health advice syndromic surveillance system
During week 7, NHS 111 triaged calls and online assessments for acute respiratory infections remained stable overall. NHS 111 triaged calls and online assessments for diarrhoea and vomiting continued to increase nationally, particularly in children aged under 15 years.
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GP in-hours syndromic surveillance system
During week 7, GP in-hours consultation rates for upper respiratory tract infections decreased slightly overall, however there was a small continuing increase observed in the under 1 year age group. Influenza-like illness rates continued to decrease overall, but activity remained above seasonally expected levels. Consultation rates for diarrhoea increased and this was particularly noted in adults aged 15 to 44 years. Vomiting consultations increased slightly, mainly in the under 1 year and 65 years and older age groups. Consultations for conjunctivitis were stable overall but remained elevated in the under 5 years age group.
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GP out-of-hours syndromic surveillance system
During week 7 there was a further decrease in GP out-of-hours contacts for influenza-like illness, however activity remained above seasonally expected levels. Contacts for gastroenteritis, diarrhoea and vomiting all increased during week 7 and are all currently above seasonally expected levels. The increases in gastroenteritis and diarrhoea were particularly noted in the 15 to 44 years age group and vomiting in children aged 1 to 4 years.
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Emergency department syndromic surveillance system
During week 7, acute respiratory infection attendances were stable overall and activity remained just above expected levels. Attendances for influenza-like illness continued to decrease over the reporting week however there was an increase in daily attendances over the weekend of 15 and16 February, particularly in adults aged 15 to 44 years and in the North West, Yorkshire and Humber and East of England regions. Gastroenteritis attendances continued to increase overall and across all age groups, but this increasing activity was in line with seasonally expected levels and trends.
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Ambulance syndromic surveillance system
During week 7 ambulance calls for difficulty breathing were stable and in line with expected levels. There was an increase in ‘impact of heat or cold’ calls, in line with an Amber Cold-Health Alert that was in place over parts of England during the reporting week, however call levels were only just above seasonally expected levels.