2012年7月11日星期三

Most notably, the Los Angeles-based AIDS

Most notably, the ray ban wayfarer Los Angeles-based AIDS Healthcare Foundation is vehemently opposed to the drug's approval as a prophylaxis in the U.S. because it says the pill is dangerous, overly expensive and will detract from proven methods of AIDS prevention, such as condom use. "Our culture is always looking for a quick fix," said Michael Weinstein, the foundation's president. "We want to pop a pill.... Well, there are better methods." In each of the three trials published Wednesday, test subjects were given Truvada or a placebo. They also received counseling on HIV risk reduction, condom use and other contraceptives. The treatment's success was closely related to whether the oakley sunglasses new style best online subjects used the drug as intended and how strongly they perceived themselves to be at risk of infection. The study that showed the highest rate of success involved 4,747 married couples in Kenya and Uganda. In each case, one of the spouses had HIV and the other was uninfected. Truvada reduced transmission of the virus by up to 75%, according to the report; the medication was deemed so effective that the study ended early and people on the placebo switched to the drug. However, a related study that focused exclusively on healthy women in Kenya, South Africa and Tanzania — some married, some unmarried — was discontinued early because Truvada failed to significantly reduce infection rates. Although 95% of test subjects told researchers they were taking the pills regularly, blood tests suggested that less than 40% of the women actually did so. "We hypothesize that the women's perception that they were at low risk for HIV infection may have contributed to the poor adherence," wrote the study authors, who were from the U.S., South Africa, Kenya, Britain and Belgium. Daily pill regimens oakley sunglasses 2012 new for sale may have also posed a difficulty for some of the women, though the researchers weren't sure why.

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