What are the routes of transmission of hepatitis B


Mother to child transmission. It is China's hepatitis B virus infection is the main cause, suffering from acute hepatitis B and HBsAg carrying mothers may be of Hepatitis B transmission to the newborn. In the course of delivery to the neonatal infection, infection in the womb to the newborn (intrauterine transmission), and post-natal infection in newborns. Blood-borne. Including the hepatitis B virus with the importation of blood and blood products, unclean injection, surgery, tooth extraction, tattoos, acupuncture, pierced ears, endoscopy and medical personnel, such as stab wounds to the accident. Iatrogenic spread. Mainly due to strict disinfection without the use of non-disposable syringes, caused by endoscopy. Sexually transmitted. Sexually transmitted. HBsAg-positive male semen infectious, in the family, HBsAg-positive spouse than the other family members more vulnerable to hepatitis B infection. Other forms of communication. About 40 percent of those chronically infected with the virus in saliva, so saliva can also cause the spread. The main means of exchange of body fluids have access to life, such as sharing razors, toothbrushes, and other hygiene products, skin and oral mucosa (including the gums) from time to time may be damaged by the infection break. Therefore, the share of the razor and toothbrush spread among family members see more. Can be seen from the above-mentioned route of transmission in the general work of the contact, the probability of occurrence of hepatitis B transmission is very low. Daily contact with the general office supplies such as the sharing, exchange of money, public dining, and so on, generally will not cause the spread.

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