Syndromic surveillance summary: 10 July 2025 week 27
Updated 10 July 2025
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Reporting week 26: 23 to 29 June 2025
During week 27, there were increases in ‘impact of heat’ indicators during the early part of the week, with numbers falling during the latter part of the week in line with the end of the amber heat health alert across England.
Remote health advice syndromic surveillance system
During week 27, NHS 111 online assessments and triaged calls for ‘heat exposure or sunburn’ decreased from Monday 30 June (online assessments) and Tuesday 1 July (triaged calls), in line with the end of the amber heat health alert across England. NHS 111 contacts in general for insect bites remained elevated during week 27.
Access the remote health advice syndromic surveillance bulletins
GP in-hours syndromic surveillance system
During week 27, the consultation rates for heat or sunstroke peaked on Tuesday 1 July, before decreasing as the week continued. The consultation rates for cellulitis increased, particularly in adult age groups.
Access the GP in-hours syndromic surveillance bulletins
GP out-of-hours syndromic surveillance system
During the first two days of week 27, GP out-of-hours daily contacts for heat or sunstroke increased, peaking on 1 July, before decreasing from Wednesday 2 July which was in line with the end of the amber heat health alert across England.
Access the GP out-of-hours syndromic surveillance bulletins
Emergency department (ED) syndromic surveillance system
During week 27, ED attendances for ‘heat or sunstroke’ demonstrated an increasing trend until Monday 30 June, then decreased throughout the rest of the week, in line with the end of an amber heat health alert in place across England.
Access the emergency department syndromic surveillance bulletins
Ambulance syndromic surveillance system
During week 27, daily ambulance dispatch calls for impact of heat initially increased, peaking on Tuesday 1 July, before rapidly decreasing, in line with the end of the amber heat warning which was in place across England.