2024-02-15 17:37:00
The World Health Organization (WHO) has provided February 13, 2024 details of the case recently reported in Chine of a woman who died following co-infection with the H3N2 seasonal influenza virus and the H10N5 avian influenza virus. This is the first known human illness linked to the H10N5 virus (see January 31 news).
The woman, aged around sixty, worked as a farmer in the province d’Anhui and had underlying health conditions. Symptoms of her respiratory illness began on November 30, 2023, and she was hospitalized on December 2. Her condition having worsened, she was transferred to an establishment of the province of Zhejiang on December 7, where she died on December 16. On January 22, authorities in Zhejiang isolated H3N2 and H10N5 viruses from respiratory samples, which was confirmed on January 26 by the Chinese Center for Disease Control and Prevention.
Duck meat samples revealed the presence of the H10N5 virus.
Investigators discovered that the woman had not been vaccinated once morest seasonal flu. A few days before her symptoms appeared, she had been exposed to live poultry while purchasing a duck. Laboratory tests carried out on duck meat from the woman’s refrigerator revealed the presence of the H10N5 virus in seven samples. The woman has not had contact with pigs or other mammals. Environmental samples taken from his home were negative.
Contact tracing of the woman in the two provinces revealed no related cases. Agricultural authorities conducted a traceability investigation of the ducks, culled the birds and disinfected the affected areas.
Further research is needed to assess the presence of the H10N5 virus in animals
According to the WHO, H10 strains are occasionally detected in wild birds, poultry and mammals in different parts of the world. These are low pathogenic viruses that do not need to be reported, so their prevalence is unknown. The H10N5 virus was isolated from pigs in the Hubei province of China.
Further research is needed to assess the epidemiology of H10N5 in animal populations, WHO said, adding that, so far, avian H10 viruses have not acquired the ability to spread from person to person. the other.
Source : Center for Infectious Disease Research and Policy
1708019725
#Ducks #identified #source #avian #flu..
