https://www.who.int/emergencies/disease-outbreak-news/item/2024-DON504
Avian Influenza A(H10N5) and Influenza A(H3N2) coinfection - China
Situation at a Glance
On 27 January 2024, the National Health Commission of the People’s
Republic of China notified the World Health Organization (WHO) of one
confirmed case of human coinfection with avian influenza A(H10N5) virus
and seasonal influenza A(H3N2) virus. This is the first case of human
infection with avian influenza A(H10N5) virus reported globally.
The case occurred in a female farmer over 60 years of age, with a
history of chronic comorbidities, from Xuancheng Prefecture, Anhui
Province. She had onset of symptoms on 30 November 2023 and passed away
on 16 December 2023. The authorities isolated seasonal influenza A(H3N2)
subtype and avian influenza A(H10N5) subtype viruses from the patient’s
samples on 22 January 2024, which were affirmed in confirmatory testing
on 26 January 2024. The patient had exposure to live poultry, and
poultry samples also tested positive for H10N5.
No new suspected human cases have been detected through the
investigation and testing done by authorities. Currently available
epidemiologic information suggests that avian influenza A(H10Nx) viruses
have not acquired the capacity for sustained transmission among humans.
Thus, the likelihood of human-to-human spread is considered low.
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