Word: viruses
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Dates: during 1980-1989
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...Center for Disease Control in Atlanta estimates that by 1991--the last year of the next president's term--as many as 10 million people in the U.S. will be infected with the AIDS-causing HIV virus. Of those 10 million people, most will eventually develop the disease, according to researchers...
Other forms of sex that do not involve the exchange of body fluids reduce the risk of transmitting AIDS. Though small amounts of the AIDS virus have been found in saliva, there is little evidence that the disease is spread through that medium...
Health educators say these last measures fail to address the fact that the AIDS virus is often spread via healthy carriers...
...disease is difficult to track because after the virus enters the body, antibodies may not form for three to six months--making it impossible to detect the disease in recently infected persons...
Further, symptoms may not develop until five to seven years after infection. This long, varying time period is known as the "latency" or "incubation" period. Not all those infected by HIV develop symptoms, but all who carry the virus may infect others...