Virus WAtch Week Ending 22 February 2015

Influenza and Influenza-like Illnesses (ILI)

Summary: Influenza and non-influenza respiratory virus activity remain low and at inter-seasonal levels.

• ILI presentations to sentinel general practitioners (GPs) remain low this week.
• ILI presentations to sentinel emergency departments (EDs) increased this week.
• Routine and sentinel detections of influenza virus remain low, with influenza A/H3N2 constituting the majority of subtyped viruses; influenza A/H1N1 and influenza B continue to co-circulate.
• Detections of non-influenza respiratory viruses remain low.

Gastroenteritis

• Presentations to sentinel GPs and EDs are consistent with this time period during previous years.
• Norovirus detections declined this week.

Varicella and Viral Rashes

• Both shingles and chickenpox presentations to sentinel EDs and GPs are near or above baseline level.
• No cases of measles or rubella were confirmed this week. One case of locally-acquired mumps was notified in a fly-in fly-out miner to the Pilbara.

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