UKHSA has confirmed a case of influenza A(H5N1) in a person in the West Midlands region. Bird-to-human transmission of avian influenza is rare and has previously occurred a small number of times in the UK.
The person acquired the infection on a farm, where they had close and prolonged contact with a large number of infected birds. The risk to the wider public continues to be very low.
The individual is currently well and was admitted to a High Consequence Infectious Disease (HCID) unit.
The birds were infected with the DI.2 genotype, one of the viruses known to be circulating in birds in the UK this season. This is different to strains circulating among mammals and birds in the US.
Although there has been no demonstrated human-to-human transmission despite extensive recent surveillance of influenza A(H5N1), UKHSA has been tracing all individuals who have been in contact with the confirmed case of avian influenza. Those at highest risk of exposure have been offered antiviral treatment. This is done to reduce the chance that any virus they have been exposed to will be able to cause infection.
The case was detected after the Animal and Plant Health Agency (APHA) identified an outbreak of avian influenza(H5N1) in a flock of birds. UKHSA carried out routine monitoring on people who had been in close contact with the infected birds.
Professor Susan Hopkins, Chief Medical Adviser at UKHSA, said: “The risk of avian flu to the general public remains very low despite this confirmed case. We have robust systems in place to detect cases early and take necessary action, as we know that spillover infections from birds to humans may occur.
“Currently there is no evidence of onwards transmission from this case.”
UK Chief Veterinary Officer Christine Middlemiss said: “While avian influenza is highly contagious in birds, this is a very rare event and is very specific to the circumstances on this premises.
“We took swift action to limit the spread of the disease at the site in question, all infected birds are being humanely culled, and cleansing and disinfection of the premises will be undertaken all to strict biosecure standards. This is a reminder that stringent biosecurity is essential when keeping animals.”