Some thoughts from Dr Katherine Arden and myself  about where the flu viruses sweeping the UK came from.

Is it the “Aussie flu”? The short answer is simply “No”. There is an influenza type B virus dominating the UK right now, not an influenza type A virus. It was A (H3N2) viruses which dominated in Aus this past Flu season.

The longer answer (but please do go and read the entire piece!) is that it’s not easy to tell in a heavily travelled world constantly and rapidly producing and moving flu strains around it.

The 2017-18 influenza season has been large all over the world.

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