Two influenza A strains contributing to autumn flu surge

The number of notifications is more than triple that recorded this time last year

A surge in two strains of influenza A has contributed to an unusual autumn spike of flu notifications in Australia, say infectious disease specialists, who are concerned the numbers may continue to rise.

Flu

Almost 40,000 laboratory-confirmed cases have been reported nationwide so far this year, with NSW and SA each seeing more than 10,000 cases before the winter season even starts.

Notifications are three times higher than this time last year, which was considered a mild season, and even compared with 2017, when more than a quarter of a million cases were reported.

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