 鲜花( 1181)  鸡蛋( 48)
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谢谢老师提供第一手资料,事实胜于熊辫。
1 j4 _# O4 |* [3 L, X5 z. F架鸡棚 发表于 2011-8-8 14:42  8 N7 p( Q$ q% Y5 K" r7 a' c
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I agree.
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7 C! a' O6 l2 B% A0 |http://www.emedicinehealth.com/hepatitis_b/page2_em.htm#Hepatitis B Causes
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6 w8 ^8 ^& ?, a, x3 SHepatitis B Transmission and Causes
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The hepatitis B virus is known as a blood-borne virus because it is transmitted from one person to another via blood or fluids contaminated with blood. Another important route of transmission is from an infected mother to a newborn child, which occurs during or shortly after birth.
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4 e5 d( o. c1 f1 Z0 QDirect contract with blood may occur through the use of dirty needles during illicit drug use, inadvertent needle sticks experienced by healthcare workers, or contact with blood through other means. Semen, which contain small amounts of blood, and saliva that is contaminated with blood also carry the virus. ! P& q; v( k9 F
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The virus may be transmitted when these fluids come in contact with broken skin or a mucous membrane (in the mouth, genital organs, or rectum) of an uninfected person.
* P$ b. x+ X5 D4 U+ N8 C9 xPeople who are at an increased risk of being infected with the hepatitis B virus include the following:
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8 H/ l+ @) {7 G) D6 G* IMen or women who have multiple sex partners, especially if they don't use a condom S1 b6 q* Q, }0 m! f
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Men who have sex with men
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( X; R) \$ W J- ] CMen or women who have sex with a person infected with hepatitis B virus
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& g3 N% f' O/ q% c& _ Y# e2 lPeople with other sexually transmitted diseases
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' ?. D4 e ^; \5 p7 FPeople who inject drugs with shared needles 6 p, J/ Z. P- I0 D+ u, v
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People who receive transfusions of blood or blood products 3 ?7 f& u `6 @/ g/ w2 V$ U
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People who undergo dialysis for kidney disease
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# c1 S5 D* u& A2 {Institutionalized mentally handicapped people and their attendants, caregivers, and family members
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Health care workers who are stuck with needles or other sharp instruments contaminated with infected blood
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& ]2 D" C$ f" D1 k: M% IInfants born to infected mothers
: A4 V7 s8 ^5 Z! _: FIn some cases, the source of transmission is never known.0 }% U9 S) e$ g. N+ A
& S ?3 V3 t% m0 @( jYou cannot get hepatitis B from the following activities:
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Having someone sneeze or cough on you 0 q, p3 v8 \+ h
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9 |$ {* J, S+ v' R4 iHandshaking a persons hand
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' c6 i; G Z( r" zBreastfeeding your child+ T: D3 D9 h+ q) V
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Eating food or drinking water
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$ J& m3 x! v) a) S+ _4 lCasual contact (such as an office or social setting) |
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