|
楼主 |
发表于 2010-1-16 10:28
|
显示全部楼层
我也不清楚哎
这是我摘贴的 自己看看吧,我反正看不太懂
给lz一个例子吧,这个是MEDHELP专家论坛的帖子,可是收费的。回答的人可是大名鼎鼎的H. Hunter Handsfield
http://www.medhelp.org/posts/HIV ... xposure/show/987097
by H. Hunter Handsfield, M.D., Jun 30, 2009 02:35AM Oral sex indeed is low risk. One estimate (from CDC) is one infection for every 10,000 exposures -- penile to oral, if the penile partner has HIV. That's equivalent to giving a ** to infected men once a day for 27 years. There are no data on whether brief exposures or more vigorous ones have lesser or greater risk, but in any case it's very low. Exposure to breast milk is not equivalent risk to oral sex, and in any case the transmission rate from infected mothers to their babies by nursing is lower than you think. By 6 months, around 10% of such babies become infected -- and remember that they are swallowing a few ounces of milk every day. The low efficiency of breast milk transmission is due mostly to the small amount of infectious virus in milk. From a risk assessment perspective, HIV testing isn't necessary after the sort of exposure you describe. However, if you do not find this reply sufficiently reassuring, perhaps you should be tested for peace of mind. In the future, avoid this sort of stress by asking your partners about HIV status before having sex with them -- even when relatively safe sex (like oral sex) is planned. Regards-- HHH, MD
口交确实是低风险的,有一个估计(来自cdc),假如jy提供方感染有hiv,用口方在曝露10000次的情况下有1次感染的几率。相当于为一个感染hiv的男性口交27年中有1次感染机会。就单次曝露而言,没有数据显示短时间的风险更小而长时间的风险更大。不过无论如何风险极低。曝露于母乳和口交是具有不等价的风险的,在任何情况下感染的母亲通过哺乳感染婴儿的概率可能比你想象的要低。6个月中,将近10%的感染比率,但是这些婴儿可是每天要吃下一定量的母乳。哺乳传播的低概率是因为母乳中病毒含量很低。从风险估计的角度,经过你所描述的曝露后,hiv测试没有必要。当然如果你不放心,可以去测试作为心理安慰。以后在和别人发生性关系之前询问一下是否有hiv来避免这种事后的担心,即使是相对安全的性行为(例如口交)。 |
|