Claire Atkinson, a Lecturer in Biomedical Science at London South Bank University, on the recent detection of influenza A(H1N2).
In November 2023 the UK notified the World Health Organization (WHO) of a human case of swine-origin influenza A(H1N2)v clade 1B.1.1 virus infection. The infection was detected as part of the routine national flu surveillance undertaken by the UK Health Security Agency (UKHSA) and the Royal College of General Practitioners (RCGP) and was the first case of human influenza A(H1N2) infection detected in the UK. The case was an otherwise well person, over 75 years of age, who has since fully recovered. What makes the case intriguing is that the case reported no direct contact with pigs, pets or farms; however, pig farms are located within a few miles of where the case resides. As of December 2023, no virological confirmed transmission was reported and the source of the infection is still under investigation.
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