FDA researchers have also developed an assay for condom leakage using high concentrations of a laboratory virus (78). The laboratory virus penetration assay is not used routinely as a quality control test, but its sensitivity and relevance are arguably greater than the conventional water leakage test. Using this virus assay, FDA scientists tested many different types of male condoms and showed that condoms are highly effective barriers to virus passage with a very small chance of leakage (76, 77). Intact condoms (i.e., pass the water leak test) are essentially impermeable to particles the size of STD pathogens (including the smallest sexually transmitted virus, hepatitis B). Moreover, these studies show that fluid flow, not virus size, is the most important determinant of viral passage through a hole. Even holes many times larger than the virus impeded fluid flow such that few of the test particles passed through (78).
Applying results from the laboratory tests (12, 76, 77, 78), the hypothetical relative risk of exposure to semen, as a function of semen volume attributable to various independent condom use events, was presented and is shown in the table below. The purpose of this relative risk assessment is to model the expected degree of protection of exposure to semen afforded by condom use, condom non-use, and condom use in the events of breakage or leakage.
Hypothetical Relative Risk Model of Condom Use
Condom Use Event
Semen Exposure(Volume, averaged over event probability)
Relative Risk Compared to Non-Use
Failure to Use a Condom
3.3 ml
1.0
Condom used, but it breaks
1 ml × 2/100
0.006
Condom used, No break but has visibly detectable hole (by water leak test)
10-2 ml × 1/400
0.000008
Condom used, No break, No visibly detectable holes, but still passes virus
6 x 10-6 ml × .023
0.00000004
Condom used, no break, no leak
0.0 ml
0.0 没有体液做载体，怎么进入你的循环系统呢 文章提到了一个安全套有小孔的问题，病毒可以穿过的小孔。 ssl8443221 发表于 2012-3-16 16:05 static/image/common/back.gif
文章提到了一个安全套有小孔的问题，病毒可以穿过的小孔。
我要骂你这种人有病！病毒就是要穿过小孔那也要有体液作为载体，体液主要就是水分，水分通不过避孕套就不要瞎恐了！日！ No visibly detectable holes, but still passes virus
（有肉眼看不见的孔，但是仍然可以通过病毒。）
我也不想恐啊，可是人家的报告就是这么写的。所以恐啊。这是性艾论坛上的一个帖子。 1、恐
在超市划破手，出血了，第二天一大早去泰国，到那后5天内发烧了，吃了导游的药第二天好转（基本上好了）。
2、恐
划破手之后5周CDC快速阴，但又恐了CDC的棉球了，护士事先把棉球攥在手里的，拔出针头后直接就用手里的棉球按在针眼上了，怕护士手上有病毒再沾到棉球上。（如果是棉签我就不恐了，护士是不可能接触到棉签上的棉花的）。
昨天去了两个CDC都被轰出来了。恐呀
很权威的信息，应该顶一下
页:
1
[2]
