Russia announced on Saturday that it had informed the World Health Organization (WHO) of this "important discovery".
She claims to have detected the first case in the world of transmission to humans of the H5N8 strain of avian flu.
"The laboratory has confirmed the first case of a person's infection with the group A virus, AH5N8 avian influenza," Anna Popova, head of the Russian health agency Rospotrebnadzor, told television, adding that the seven people infected in a poultry factory in the south of the country "feel good".
"Measures were quickly taken to control the situation" in this focus of infection, she said.
While the H5N8 strain has "crossed the interspecies barrier" by being transmitted from birds to humans, "this variant of the virus is not transmitted from person to person at the present time", she again declared.
Anna Popova also estimated that this detection "gives the whole world time to prepare" by creating tests and a vaccine, "in the event that this virus becomes more pathogenic and more dangerous for humans and acquires the capacity to be transmitted from person to person ”.
"We would then be fully armed and fully prepared," she continued.
Contaminations in poultry in France
In France, a first outbreak of avian influenza "highly pathogenic (HPAI) strain H5N8" was detected in Haute-Corse, near Bastia, revealed on November 16 the Ministry of Agriculture.
This detection gave rise to "the euthanasia of a farm of around 200 to 300 hens," he said.
In several weeks, the preventive slaughter of poultry has been extended to around a hundred municipalities.
The French health authorities then assured that the first elements of analysis of the H5N8 strain isolated in Corsica showed a similarity with one of the strains currently circulating in the Netherlands, which has no zoonotic character, that is - that is, it is not transmissible to humans.
"The consumption of meat, foie gras and eggs - and more generally of any food product - does not present any risk for humans", also indicated the ministry.
The disease has already appeared in other countries such as Kazakhstan, the Netherlands, Ireland or the United Kingdom.