The US Centers for Disease Control and Prevention reported a case of human infection with H5 avian influenza virus on the 28th, which is the first patient infected with this type of virus in the United States.
According to the US Centers for Disease Control and Prevention, the case occurred in Colorado, and the infected person had direct contact with poultry and culled poultry suspected of being infected with the H5N1 avian influenza virus. The only symptom reported by infected people was fatigue, which persisted for several days. The case is currently in isolation and is being treated with the anti-influenza virus drug oseltamivir.
The CDC said this is the second human case of infection with the currently prevalent H5 avian influenza virus, with the UK reporting the first related human case in December. Since 2003, more than 880 cases of human infection with H5N1 avian influenza virus have been reported worldwide. The H5N1 avian influenza virus that is currently prevalent in birds around the world is different from the H5N1 avian influenza virus that has been circulating in the past.
Since the end of last year, bird flu outbreaks have occurred in many places in the United States. The latest data from the US Centers for Disease Control and Prevention shows that bird flu viruses have been found in farms in 29 states, and bird flu viruses have been found in wild birds in 34 states. The CDC has tracked the health of more than 2,500 people who have been exposed to birds infected with the H5N1 avian flu virus, and the Colorado case is the only relevant case identified so far.
The CDC said the risk to public health posed by bird flu is low, and the above cases do not change that risk assessment. However, people who come into contact with birds infected with avian influenza virus have a relatively high risk of infection, and corresponding preventive measures should be taken.