What is the transmission route of Big Three Yang

There was a time in China when hepatitis B was very taboo because it was highly contagious and could easily cause large-scale population infection. The big three positive is the standard for measuring hepatitis B. There are many ways of transmission of big three positive, such as blood transmission, sexual transmission, medical transmission, and mother-to-child transmission. The most worrying thing is that there is a risk of transmission even through close contact. For example, contamination from various fluids on the skin can cause illness, so the only option is isolation and treatment.

First, blood transmission

Blood transmission is also the main route of hepatitis B virus transmission. It mainly refers to ordinary people who may be infected when they receive whole blood, plasma, serum or other blood products infected with the hepatitis B virus, or when they come into contact with the blood of a hepatitis B virus infected person during surgery, injections, acupuncture, hemodialysis, dental fillings, shaving, pedicure, etc.

Second point: sexual contact transmission

Since the hepatitis B virus can also be detected in the semen and vaginal secretions of patients with hepatitis B virus, hepatitis B virus can be transmitted through sexual contact.

Third point: medical transmission

If medical devices are not thoroughly disinfected or improperly handled after being contaminated with hepatitis B virus, it may cause transmission; blood patients are often the targets of hepatitis B transmission.

Fourth point: vertical transmission from mother to child

Vertical transmission from mother to child includes transmission through the placenta, delivery, breastfeeding and feeding. However, due to the continuous development of science and technology and the continuous improvement of hepatitis B prevention measures in recent years, clinical cases of hepatitis B virus (HBV) transmission through this route have become extremely rare. Therefore, in order to effectively reduce the vertical transmission of hepatitis B virus (HBV) from mother to child, mother-to-child hepatitis B immunization should be performed immediately after the baby is born.

Fifth, close contact in daily life

Long-term close contact with patients with Hepatitis B virus (HBV) may cause saliva, urine, blood, bile and milk to contaminate utensils and objects, and spread Hepatitis B virus (HBV) through damaged skin and mucous membranes. Among them, mouth-to-mouth transmission may be the most important way. Because the hepatitis B virus surface antigen can be detected in the saliva of patients with hepatitis B virus (HBV).

If timely and effective treatment is given at the beginning of the disease (early or acute stage) for hepatitis B, most patients can recover, but a small number will develop into chronic hepatitis B or hepatitis B virus carriers. Because at the beginning of hepatitis B virus infection, the amount and speed of viral replication are limited, the harm to the liver and damage to liver cells are limited, and a series of immune regulatory dysfunctions are not fully stimulated.