The period of intensive Influenza surveillance for 2015/16 has ended. This is the first of our monthly bulletin reports over the summer period. It provides an update on influenza and other viral respiratory pathogen activity for the previous four weeks. Over the summer (weeks 21-39) an influenza update report will be published every four weeks unless influenza (or other viral respiratory pathogen) activity increases significantly.
In Scotland, clinical influenza activity is low and stable while virological influenza activity is decreasing. Community circulation of influenza has continued beyond the usual seasonal period as evidenced by continued virological influenza detections and reports of laboratory confirmed influenza cases in ICU within the last four weeks.
Eleven laboratory confirmed influenza cases with severe infection requiring intensive care management (ICU cases) were reported to HPS within the last four weeks (five influenza A(H1N1)pdm09, three influenza A(not subtyped) and three influenza B). One new closed setting outbreak of acute respiratory infection was reported to HPS within the last four weeks.
The levels of seasonal respiratory pathogens (rhinovirus and human metapneumovirus (hMPV)), reported through non-sentinel sources (ECOSS), were stable and within expected seasonal levels. The levels of coronavirus, parainfluenza, adenovirus and Mycoplasma pneumoniae (MPN) were increased and above expected seasonal levels in at least one week between weeks 19 and 22. Respiratory syncytial virus (RSV) levels were above expected seasonal levels in week 22, however, due to the small number of RSV detections in this week and the corresponding week in the previous seasons, the increase should be interpreted with caution.