Abstract

A dramatic decline in gonorrhea has been observed in some American homosexual communities since the advent of AIDS. It has been suggested that this decline is a good indicator of voluntary behavioural change in response to the threat of AIDS. A model is developed here to assess the effects of gonorrhea epidemiology of removals from the community as a result of AIDS. The model allows for a continuous distribution of sexual partner exchange rate and a variable degree of correlation between the rates of those involved in a partnership. Output of the model using plausible parameter values shows that it is possible to explain most or all of the decline in gonorrhea by sickness and deaths due to HIV/AIDS. Therefore, the decline in gonorrhea should not be automatically accepted as evidence of appropriate behavioural change.

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