◆ 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. This is the essence of blood-borne transmission. ◆ way to spread menstrual blood. 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. Now as a result of increased screening of blood donors, blood transfusion caused by the spread of hepatitis B have been few. However, a small number of HBVDNA positive, and hepatitis B virus surface antigen (HBsAg)-negative blood may still undetected. So, by way of blood spread of hepatitis B has not totally eradicated. ◆ iatrogenic spread. Mainly due to strict disinfection without the use of non-disposable syringes, caused by endoscopy. Therefore, efforts should be made to implement a one-time medical equipment. Now the country is on the endoscope disinfection more stringent disinfection norms, which can greatly reduce the spread of iatrogenic. ◆ sexually transmitted. The spread of HBsAg-positive rate of 5.44 percent, and social life in general contact the HBsAg positive rate of only 0.68 percent. Therefore, in the family, HBsAg-positive spouse than the other family members more vulnerable to hepatitis B infection. Hepatitis B is caused by sexual transmission of important reasons. ◆ daily lives of ordinary contact. This mainly refers to the exchange of body fluids have access to life, such as sharing razors, toothbrushes, and other health supplies. Therefore, the spread among family members see more. In addition, approximately 40% of those chronically infected with the virus in saliva, so saliva can also cause the spread. However, the sharing of office supplies, money exchange, the dining public, and so on, generally will not cause the spread.
Return to the route of transmission of hepatitis B
Posted by : luckycong on
Tuesday, December 23, 2008
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hepatitis B
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