This report provides an update on influenza and other seasonal respiratory pathogen activity for the week ending 07 December 2014. For this season, we will provide detailed influenza update reports on a monthly basis with bulletin style weekly updates in the weeks in between.
This report contains summary epidemiological information on influenza-like illness (ILI) and acute respiratory illness (ARI) activity, its severity and impact in the community and secondary care settings, and vaccine uptake estimates.
The GP consultation rate for influenza-like illness (ILI) and the threshold for normal seasonal activity have been calculated using a new method this season which the European Centre for Disease Prevention and Control (ECDC) is recommending should be used across the EU. Please refer to the technical document for further information.
A guidance document has been issued by HPS with recommendations for the antiviral treatment and prophylaxis of influenza for the season 2014-15.
Influenza clinical and virological activity remained low overall.
No laboratory confirmed influenza cases with severe infection requiring intensive care management (ICU cases) were reported to HPS within the last week. Since week 40 2014, a total of 2 ICU cases have been reported to HPS (1 A(H3) and 1 A(not subtyped)).
The levels of non-influenza pathogens (coronavirus, parainfluenza, Mycoplasma pneumoniae (MPN), human metapneumovirus (hMPV) and rhinovirus reported from non-sentinel sources (ECOSS)), were stable and in line with expected seasonal levels. The levels of adenovirus were increased but within expected seasonal levels. Increasing detections of respiratory syncytial virus (RSV) are consistent with the start of the annual RSV wave.
The levels of non-influenza pathogens (coronavirus, parainfluenza, rhinovirus, hMPV and MPN), reported from sentinel sources were low and in line with expected seasonal levels whereas the levels of RSV were increased but remained within expected season levels. The levels of adenovirus were increased and above expected levels at this time of the year.