Two Brit poultry workers contract bird flu after working with infected chickens
Bird flu has been detected in two poultry workers in the UK, though there are no signs of human-to-human transmission, the UK Health Security Agency (UKSA) has said.
The cases are believed to be linked to exposure to sick birds on a single poultry farm where the two people were known to have recently worked.
Neither worker suffered symptoms of infection and both cases were found during screening.
The UKHSA is running a programme of testing workers who deal with birds infected with avian flu, but is also running asymptomatic testing.
The first human case being reported was detected via a swab put in the nose. Experts believe it is likely this worker may have inhaled the virus.
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The second person is thought to be a more complicated case and it is unclear whether they have suffered a genuine infection or whether they have inhaled the virus while they were at work.
The cases are said to be linked to sick birds on a single farm (Getty Images/Bloomberg Creative Photos)Further investigation is under way but precautionary contact tracing has been undertaken for this person, the UKHSA said.
Both people are now testing negative, the UKHSA said, adding there is no evidence of person-to-person transmission.
The UKHSA said the cases do not change the level of risk to human health, which remains "very low to the general population".
Professor Susan Hopkins, chief medical adviser at the UKHSA, said: "Current evidence suggests that the avian influenza viruses we're seeing circulating in birds around the world do not spread easily to people.
Both people are now testing negative, the UKHSA said (Getty Images)"However, we know already that the virus can spread to people following close contact with infected birds and this is why, through screening programmes like this one, we are monitoring people who have been exposed to learn more about this risk.
"Globally, there is no evidence of spread of this strain from person to person, but we know that viruses evolve all the time and we remain vigilant for any evidence of changing risk to the population.
"It remains critical that people avoid touching sick or dead birds and that they follow the Defra advice about reporting."
Bird flu is a well-known infectious disease of poultry and wild birds.
However, other animals have also been catching the illness, such as seals, otters, wild dogs and foxes. Animal cases have been reported in the UK and across the world.
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The H5N1 virus is the most prevalent strain in circulation at the moment.
The UKHSA said for people with the highest risk exposures to infected birds, UKHSA health protection teams contact them daily to monitor for the development of any symptoms.
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