2023-08-16 02:36:19
The United States has notified the World Health Organization (WHO) of a case of human infection with a new variant of the A(H1N2) swine influenza virus. This news comes from the State of Michigan and marks an important event in the field of public health.
According to information provided by both the WHO and the United States Centers for Disease Control and Prevention (CDC), the case involves a child under 18 years of age. Fortunately, the patient has not required hospitalization and is in the process of recovery.
Investigation by local public health authorities has indicated that the patient may have been exposed to the virus during an agricultural fair where he had contact with pigs. Despite this case, no “sustained transmission” from person to person has been identified thus far.
Characteristic symptoms of infection
The patient presented with a series of symptoms characteristic of influenza virus infection, including fever, cough, sore throat, muscle aches, headache, shortness of breath, diarrhea, nausea, dizziness, and lethargy. After going to the emergency room on July 29, an upper respiratory tract sample was taken on July 30, which was positive for the influenza A virus. Subsequently, on August 1, antiviral treatment was started.
This case marks the first infection with the A(H1N2) variant influenza virus in the United States this year. Since 2005, 512 variant influenza A virus infections have been reported, including 37 cases of human infection with influenza A(H1N2) virus in the country.
Swine influenza A(H1N2) viruses are found in swine populations in various parts of the world. Although direct or indirect exposure to pigs or contaminated environments is often the cause of human infections, sustained person-to-person transmission has not been observed so far.
Does not change current recommendations
The WHO has issued a statement in which it clarifies that this case does not modify the current recommendations regarding public health measures and surveillance of seasonal influenza. No special screening at points of entry or additional restrictions are advised in relation to the current situation of influenza viruses at the human-animal interface.
However, it is advised to avoid contact with animals that are sick or dead from unknown causes, including wild animals. Reporting deaths of wild birds and mammals to local wildlife or veterinary authorities is crucial. In addition, it is recommended that travelers to countries with known outbreaks of animal influenza avoid farms, live animal markets, and animal slaughter areas, while maintaining rigorous hand hygiene.
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