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Weekly Influenza and Acute Respiratory Infection Report

Current level of activity: Low
Trend: Stable
News: Following late seasonal activity, influenza cases have decreased in recent weeks. Data suggest that RSV is currently circulating in Wales.

For the latest annual influenza and acute respiratory infections in Wales reports see: Annual influenza surveillance and influenza vaccination uptake reports

Weekly surveillance reports

Latest report: Public Health Wales Influenza Surveillance Report: Week 32 2022 

Latest vaccination coverage data: Public Health Wales Influenza Vaccination Coverage Downloadable Data

Key points


In Wales:
Flu activity surveillance update
  • The GP consultation rate for influenza in Wales during week 32 reported through the GP Sentinel Surveillance of Infections Scheme was 0.28 consultations per 100,000 practice population, and remains below the Moving Epidemic Method (MEM) threshold for baseline activity (11.0 consultations per 100,000).
  • The rate increased compared to week 31 (0.25 consultations per 100,000).
Virological surveillance update 
  • During week 32, one surveillance sample from patients with influenza-like illness was submitted by a sentinel GP for testing as at 17/08/2022, which was negative.
  • During week 32, 818 hospital and non-sentinel GP patients were tested for respiratory infections by Public Health Wales Microbiology of which, 8 were positive for influenza (5 for A(H1N1) and 3 for A(H3N2)). A number of other causes of acute respiratory infection were identified.
  • Virological testing data in children up to 5 years of age suggest that Respiratory Syncytial Virus (RSV) is currently circulating in Wales.
In the UK and Europe
  • As of week 31, influenza consultations decreased in Northern Ireland, Scotland and England. All remained below baseline levels in all countries. UK summary data is available from the Public Health England National Influenza Report.
  • The WHO and the European Centre for Disease Prevention and Control (ECDC) reported that during weeks 26-30, influenza activity remained at interseasonal levels in the WHO European Region. For more information on European level influenza surveillance see Flu News Europe
World Overview
  • The WHO reported on 24/07/2022 that influenza activity continued to decrease, following a peak in March 2022. In the temperate zones of the southern hemisphere, overall influenza activity continued to increase.  
  • See full WHO influenza update
MERS-CoV and H7N9 Updates
  • On 28/04/2022 WHO reported an additional case of Middle East Respiratory Syndrome coronavirus (MERS-CoV). Globally, 2,591 laboratory confirmed cases of human infection with MERS-CoV, including 894 associated deaths, have officially been reported to WHO since 2012.
  • The latest WHO Influenza at Human-Animal Interface summary (08/04/2022 to 13/05/2022) reports that there have been no publicly available records from China or other countries on avian influenza A(H7N9) in recent months. Since February 2013, a total of 1,568 laboratory-confirmed cases of human infection with avian influenza A(H7N9), including at least 616 deaths, have been reported.
  • Updates are available from WHO Global Alert and Response
  • Latest WHO Influenza Monthly Risk Assessment Summary
  • Public Health Wales has published advice to health professionals which is available at MERS-CoV and Influenza H7N9 infection control preparedness

Weekly Influenza Surveillance Reports for Wales

Reports Archive