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FIGURE 2—— US cities with increases of more than 50 reported primary and secondary syphilis cases, by number of cases and gender, in (a) Los Angeles, Calif, (b) San Diego, Calif, (c) San Francisco, Calif, (d) San Jose, Calif, (e)Miami, Fla, (f) Atlanta, Ga, (g) New York, NY, (h) Columbus, Ohio, and (i) Houston, Tex: United States, 2000–2003.