CHICAGO (Reuters) - Syphilis is making a comeback in developed countries, spurred by illicit drug use and high-risk sexual behaviors, and many doctors are unprepared to recognize and treat it, U.

• 芝加哥(路透社)在发达国家中梅毒卷土重来，主要是药品不正当应用和高危险的性行为，以及许多医生是事先没有正确的辨认和治疗。