A new, highly resistant strain of HIV that appears to develop rapidly into AIDS has been diagnosed in a New Yorker who had not previously undergone antiviral drug treatment, says the city health department, which is holding a press conference today. While drug resistance is increasingly common in people who have been treated for the human immunodeficiency virus, city officials called the case “extremely rare.” The patient, who now has AIDS, is a male in his mid-40s who reported multiple male sex partners and unprotected anal intercourse, often while using crystal methamphetamine. The patient appears to have developed AIDS within...