Gonorrhea rates rising among hardest-hit.
At the very time when the nation's syphilis infection rates are declining and when new tests make it easier to detect and treat chlamydia, there is a dark cloud on the horizon: more than 60% of the cities that have been hardest hit by gonorrhea infection have experienced increases in the infection rate between 1999 and 2000.
D006069:Gonorrhea / Q000453:epidemiology*; D015658:HIV Infections / Q000453:epidemiology / Q000517:prevention & control; D006801:Humans; D012725:Sexual Behavior; D013587:Syphilis / Q000453:epidemiology; D014481:United States / Q000453:epidemiology