influenza a(h1n1) virus

Viruses can cause great harm to human health. We need to prevent some viruses in our daily lives, which requires good living habits. This will be very helpful in avoiding viruses in our bodies. So what is the influenza A (H1N1) virus? Many people are not clear about this type of virus, but this type of virus can cause serious damage to human health.

So what is the influenza A (H1N1) virus? Let us introduce it in detail. To avoid this type of disease, you need to make reasonable arrangements for your personal hygiene and diet to avoid infection with this virus.

Influenza A(H1N1) virus:

It was originally called human infection with swine flu. In order to avoid misleading people with the term "swine flu", on April 30, 2009, the World Health Organization, the Food and Agriculture Organization of the United Nations and the World Organization for Animal Health announced that they agreed to use H1N1 influenza to refer to the epidemic at the time and would no longer use the term "swine flu". H1N1 refers to the glycoprotein on the surface of the virus. H stands for hemagglutinin, which has 1 to 15 types; N stands for neuraminidase, which has 1 to 9 types. Both H and N of this virus are type 1, so it is called H1N1. Chinese health authorities have since renamed the original human swine flu to influenza A (H1N1).

The symptoms of influenza A (H1N1) are similar to those of a cold, and patients may experience fever, cough, fatigue, loss of appetite, etc. It has been reported that the main symptoms of cases found in the 2009 epidemic in the United States were sudden fever, cough, muscle pain and fatigue, and some patients also had diarrhea and vomiting symptoms; cases found in Mexico also had symptoms such as red eyes, headache and runny nose.

Professor Tan Deming, director of the Department of Infectious Diseases and doctoral supervisor at Xiangya Hospital, said that if young and middle-aged people have too strong immunity, the antibody reaction will be too intense, forming a "cytokine storm" and causing serious damage to the lung tissue.

When a person's lungs are invaded by influenza or respiratory viruses, a large number of activated T cells appear to fight the virus. When T cells are activated, the level of cytokines in the human body increases, forming a "cytokine storm" and causing inflammation in the lungs. After a few days, T cells cause the number of OX40 molecules in the body to increase, and the OX40 molecules send a "continue to survive" signal to the T cells, causing the T cells to continue to stay in the lungs. The "cytokine storm" intensifies, lung inflammation worsens, and ultimately the human immune system is overwhelmed and endangers human health. Therefore, the patients are mostly young and middle-aged people, rather than the susceptible population of seasonal influenza - the elderly and children.

The above is an introduction to what the influenza A (H1N1) virus is. To prevent this type of virus, we must improve our own immunity so that we will not be prone to certain diseases. In our daily diet, we must make reasonable choices for foods rich in protein, vitamins and other trace elements.