Syndromic surveillance summary: 18 January 2026 week 3
Updated 29 January 2026
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Reporting week 3: 11 to 18 January 2026
During week 3, attendances for respiratory indicators, including acute respiratory infections (ARI), broadly shared a similar pattern of continued decreases across systems, but with increases in the rates for those aged 1 to 14 in line with seasonal expectations. Influenza-like illness indicators continued to decrease but also had similar small increases in those aged 1 to 14. ‘Impact of cold’ and ‘injury’ indicators decreased following the end of the amber cold-health alert.
Remote health advice syndromic surveillance system
During week 3, NHS 111 triaged calls and online assessments for acute respiratory infections continued to decrease overall nationally, however there were small increases in calls and online assessments in those aged between 1 and 14 years in line with seasonal expectations. Triaged calls for vomiting also increased in those aged 1 to 14 years.
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GP in-hours syndromic surveillance system
During week 3, GP in-hours consultations for respiratory infection indicators, including influenza-like illness (ILI), continued to decrease nationally and are at or below seasonally expected levels. Whilst there are small increases in consultation rates for these indicators in those aged 1 to 14, these are expected the time of year and consultation rates in other age groups continue to decrease.
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GP out-of-hours syndromic surveillance system
During week 3, GP out-of-hours daily contacts for acute respiratory infections (ARI) and influenza-like illness (ILI) continued to decrease nationally. Whilst ARI contacts increased in those aged between 1 and 14 years, and ILI contacts increased in those aged 5 to 14 years, contacts for both indicators continued to decrease in those aged over 15 years, broadly in line with seasonal expectations.
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Emergency department syndromic surveillance system
During week 3 emergency department (ED) attendances for acute respiratory infections (ARI) decreased in children under 1 year and adults aged 15 years and over whilst attendances for children aged 1 to 14 years increased slightly. This is in line with seasonal expectations. ED attendances for influenza-like illness (ILI) continued to decrease, particularly in adults aged 15 years and over. Pneumonia attendances continued to decrease, particularly in the age groups 45 years and over. ‘Acute bronchiolitis or bronchitis’ attendances continued to decrease in children under 1 year of age. ED attendances for scarlet fever returned to levels similar to the pre-Christmas period. Attendances for ‘impact of cold’ decreased following the end of the amber cold-health alert.
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Ambulance syndromic surveillance system
During week 3, daily ambulance dispatch calls for ‘impact of heat or cold’ decreased following the end of the amber cold-health alert and is at seasonally expected levels. Similarly calls for ‘injuries’ decreased, although remain above expected levels.