Although some children grow up normally, showing no AIDS-related symptoms until several years after they enter school, many more are slow to develop physically and mentally.
Her husband died of what appeared to be AIDS-related symptoms in 1996.
That could be encouraging news for the hundreds of thousands of people who suffer from AIDS-related symptoms and the one million others who, like Mr. Johnson, are infected though not ill.
The study began in 1985, when a Belgian woman in Antwerp was found to have AIDS-related symptoms.
Mr. Hutto, now 92, has moved in with his daughter and has not developed AIDS-related symptoms, according to The Associated Press.
A list of AIDS-related symptoms was visible on an office desk.
There is generally little disagreement that people who show advanced AIDS-related symptoms - like unexplained fever or thrush, a fungus infection in the mouth - should be treated.
He died of AIDS-related symptoms in 1994.
Research also indicates that men with HIV infection who receive guidance in relaxation or other therapeutic techniques show a delayed onset of AIDS-related symptoms.
But it has not been shown that AZT will help more than it will hurt other groups of patients with AIDS-related symptoms.