Russia has registered the first case of a strain of bird flu virus named A(H5N8) being passed to humans from birds and has reported the matter to the World Health Organisation (WHO), Anna Popova, head of consumer health watchdog Rospotrebnadzor, said on Saturday.
Outbreaks of the H5N8 strain have been reported in Russia, Europe, China, the Middle East and North Africa in recent months but so far only in poultry.
Other strains — H5N1, H7N9 and H9N2 — have been known to spread to humans.
Russia reported the case of human infection to the WHO "several days ago, just as we became absolutely certain of our results," Popova said on Rossiya 24 state TV.
There was no sign yet of transmission between humans, she added.
Seven workers at a poultry plant in Russia's south had been infected with the H5N8 strain in an outbreak at the plant in December, Popova said, adding that the individuals involved felt fine now."This situation did not develop further," she said.
In an email WHO's European arm said it had been notified by Russia about a case of human infection with H5N8 and acknowledged this would, if confirmed be the first time the strain had infected people.
"Preliminary information indicates that the reported cases were workers exposed to bird flocks," the email said."They were asymptomatic and no onward human to human transmission was reported.
"We are in discussion with national authorities to gather more information and assess the public health impact of this event," the email added.
The majority of human bird flu infections have been associated with direct contact with infected live or dead poultry, though properly cooked food is considered to be safe.
Bird flu outbreaks often prompt poultry plants to kill their birds to prevent the virus from spreading, and avoid importing countries having to impose trade restrictions.
The vast majority of cases are spread by migrating wild birds, so producing countries tend to keep their poultry indoors or protected from contact with wildlife.
Siberia's Vector Institute said it would start developing human tests and a vaccine against H5N8.Last updated: February 21 2021 12:20 AM
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