Inactivation of hepatitis A virus

Update Date: 2024-09-06 Source: Network

summary

Eating in the street often is not good for your health. It's easy to get diseases, such as hepatitis A. hepatitis A is infectious. It's better to get hepatitis A vaccine at ordinary times, which can play a preventive role. Let's tell you some knowledge about inactivating hepatitis A virus!

Inactivation of hepatitis A virus

First: the general children will be inactivated hepatitis A vaccine, hepatitis A virus mainly through fecal - oral transmission, the source of infection for patients. The incubation period of hepatitis A is 15-45 days. The virus often exists in the blood and feces of patients 5-6 days before the increase of transaminase. After 2-3 weeks, the infectivity of blood and feces gradually disappeared with the production of specific antibodies in serum. Long term carriers of the virus are extremely rare.

Second, HAV is excreted with the feces of patients, and can cause sporadic epidemic or pandemic by polluting water, food, seafood (such as Scapharca subcrenata, etc.) and tableware. Hav can also be transmitted through blood transfusion or injection, but because the duration of HAV in patients' blood is much shorter than that of hepatitis B virus, this mode of transmission is relatively rare.

Third: in the process of dominant or recessive infection of hepatitis A, the body can produce IgM and lgG antibodies against HAV. The former appears in the acute and convalescent stages, while the latter appears in the late convalescent stage, and can be maintained for many years. In addition, active NK cells and specific cytotoxic T cells (CD8 +) play an important role in the elimination of HAV and the control of HAV infection.

matters needing attention

For patients with hepatitis A, it is necessary to pay special attention to rest in the process of treatment to avoid overwork. Many patients with hepatitis a relapse because they do not pay attention to rest. After suffering from hepatitis A, it is best to eat separately from their families, so as not to spread the disease to their families.