The spectre of prostitutes as carriers of sexual transmitted diseases is an old one. Women who work in the sex trade are regarded as both morally and physically dirty. Historically 'sanitary' policing has been one of the most common forms of social control.
Issue about feminist exploration of sexual subjectivities, experiences, desires and pleasures. See for the abstracts of the articles: http://www.msvu.ca/atlantis/vol/abstract/23.1ab.htm
On the basis of this analysis of the medical histories of 50 female prostitutes over a two year period, authors conclude that condoms can be very effective in preventing the spread of many sexually transmitted diseases.