The operators of online games that are used by children go to great lengths to prevent their young players from swearing. However, these attempts are doomed when faced with the inventiveness of children when it comes to language. Last night, I looked over Zoe's shoulder as she was playing Runescape and noticed that every third word that she and her friends were saying was aids. She explained that as they weren't allowed to use proper swear words, and as AIDS was something bad, they used that instead.
There is a good precendent for using the names of a disease as a swear word. Here is Paul Halmos talking about John von Neumann:
Once the telephone interrupted us when we were working in his office. His end of the conversation was very short; all he said between "Hello" and "Goodbye" was "Fekete pestis!", which means "Black plague!". Remembering, after he hung up, that I understood Hungarian, he turned to me, half apologetic and half exasperated, and explained that he wasn't speaking of one of the horsemen of the Apocalypse, but merely of some unexpected and unwanted dinner guests that his wife just told him about.