werner@aecom.UUCP (Craig Werner) (01/28/86)
The following is [very] excerpted from _Natural History_ Defn: Incidence in the number of NEW cases of a disease reported per unit time. It differs from Prevalence (cases/population) in that a rare but long-term disease can have a low incidence but high prevalence, and the reverse situation is possible. Keeping that in mind, consider the following: The incidence of AIDS among never-married men (not specifically Gays, whose number is less easy determine than singles) in San Francisco and New York is HIGHER than the incidence of Chicken Pox in Children. (Of course NYC and SF account for 2/3 of the nation's cases.) -- Craig Werner !philabs!aecom!werner "When I was your age, I always did it for half an hour a day."