What are the causes of hepatitis A

Update Date: 2023-10-19 Source: Network

summary

My cousin often has to run at night, and he likes to drink. Recently, he always feels uncomfortable. When he goes to the hospital, he knows that he has hepatitis A. In clinical medicine, there are many causes of hepatitis A. my uncle doesn't know how to cause hepatitis A. now I'll tell you what causes of hepatitis A.

What are the causes of hepatitis A

First, hepatitis A is transmitted by fecal oral route, that is, if people without hepatitis A virus antibody eat water or food contaminated by hepatitis A virus and not strictly disinfected, they will get hepatitis A. If the patient has not suffered from hepatitis A, in some public places ready to eat, especially those without treatment of tableware, must be disinfected in advance.

Second: whether hepatitis A virus will cause hepatitis A after it enters human body depends on human resistance, quantity and toxicity of hepatitis A virus. In particular, shellfish contaminated by virus, such as Scapharca subcrenata, are easy to cause hepatitis A after ingestion without strict disinfection. Generally speaking, most of the reasons are because the patient's resistance is not good, infected with the virus, so lead to hepatitis A.

Third, the infectivity of hepatitis A virus is determined by the amount of excretion of feces from patients with hepatitis A or subclinical infection, not by the level of transammonium or the degree of jaundice. Generally speaking, hepatitis A patients are infectious from the late latent stage to 2-3 weeks after onset. In clinical medicine, this reason is more common, there are many hepatitis A patients are caused by this reason.

matters needing attention

In this period, hepatitis A virus can be isolated from the faeces of hepatitis A patients, but the largest amount of excretion is from 4 days before the onset to 4-6 days after the onset. Therefore, the infectivity of hepatitis A virus is the strongest in this period. Hepatitis A patients in daily life absolutely can't drink, can't stay up late, also can't be too tired, can go outdoors appropriately, but can't do strenuous exercise.