Word: skins
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Dates: during 1980-1989
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...semen or blood of an AIDS victim. In semen, the virus rides as a passenger, probably in the disease-fighting white blood cells in the fluid. During intercourse, the white blood cells containing the AIDS virus alight on the mucous membranes inside the rectum or the vagina. Unlike the skin, which is an efficient barrier to the virus, the mucous membrane is a much thinner tissue and is more susceptible to infection. If microscopic tears occur in the membranes during sexual contact, these may act as passageways for the virus. But some studies in animals indicate that even tears...
...Health who has been studying the disease in Africa, where syphilis, gonorrhea, herpes and chancroid are common in AIDS victims. Quinn has observed a similar pattern in New York City and Miami. "Genital inflammation may increase susceptibility," says Quinn. "The virus may gain access via breaks in the skin due to sexually transmitted diseases...
...skin when I roll from...
...virus doesn't do much damage for a long time," says Jesse Summers of the Fox Chase Cancer Center in Philadelphia, "but then, after 20 or 30 years, chronic liver problems develop." Papillomaviruses, which cause warts, may also take up permanent residence in the body, biding their time in skin cells...
...good absorber of ultraviolet. But when CFCs rise to the ozone layer, sunlight decomposes them, releasing the chlorine they contain. The chlorine is a catalyst, breaking ozone apart without itself being affected. At present, the ozone layer lets enough ultraviolet through to cause sunburn and, in some people, skin cancer. More ultraviolet would increase the effect: the Environmental Protection Agency estimates a 1% drop in global ozone could cause 20,000 additional skin cancers in the U.S. annually...