m******8 发帖数: 2153 | 4 吃饭最好用公筷,一人一套固定的餐具, HBV能存活7天左右
The virus is transmitted by exposure to infectious blood or body fluids such
as semen and vaginal fluids, while viral DNA has been detected in the
saliva, tears, and urine of chronic carriers. Perinatal infection is a major
route of infection in endemic (mainly developing) countries.[9] Other risk
factors for developing HBV infection include working in a healthcare setting
, transfusions, and dialysis, acupuncture, tattooing, extended overseas
travel and residence in an institution.[3][10][6] However, Hepatitis B
viruses cannot be spread by holding hands, sharing eating utensils or
drinking glasses, kissing, hugging, coughing, sneezing, or breastfeeding.[7]
[8]
...
HBV can be transmitted between family members within households, possibly by
contact of nonintact skin or mucous membrane with secretions or saliva
containing HBV.[43][44] However, at least 30% of reported hepatitis B among
adults cannot be associated with an identifiable risk factor.[45]
http://en.wikipedia.org/wiki/Hepatitis_B |