The 2018 Influenza Season

The 2018 Influenza Season

Updated: 13 November 2018

The 2018 influenza season, which started in week 18 (first week of May) is ongoing, although the number of influenza positive samples has declined over the past few weeks.

The number of specimens per week submitted by Viral Watch sites declined from an average of 45 in September to ≤ 12 in October.

During May and June, influenza A(H1N1)pdm09 accounted for ≥90% of influenza detections. From August onwards influenza B has accounted for ≥90% of detections per week.

Since the onset of the season, a total of 671 influenza detections has been made. Of these, 382 (57%) have been identified as A(H1N1)pdm09, 20 (3%) as A(H3N2) and 266 (40%) as influenza B. Three influenza A detections are untyped due to low viral load.

Although the number of patients testing positive for influenza has declined, clinicians are reminded that influenza should still be considered as one of the potential cause of illness in patients presenting with influenza-like illness or respiratory illness during this period.

Communicated by: National Institute for Communicable Diseases

 

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You are advised to visit your general practice surgery or a travel medicine clinic at least 6 weeks before you travel. However, it is never too late to seek advice.

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