The National Institute for Communicable Diseases declared the start of the influenza season in week 17 (week ending 1 May) and influenza A positivity rates have continued to increase during May 2022, reaching 36.1% during week 22 nationally (week ending 5 June). Influenza B detection rates remain low.
Where available, influenza A typing identified predominantly H1N1 pdm09, however, H3N2 circulation was also noted
Respiratory syncytial virus (RSV) activity continued during May but with decreasing percentage positivity, dropping from 42.5% in week 17 to 16.8% in week 22
Respiratory Virus Statistics: May 2022