African-Americans in San Diego County, Imperial County and California had higher rates of primary and secondary syphilis than those among the White and Latino populations. In 2016-2017, in San Diego County, African- Americans had a rate of 32 per 100,000 (102 cases), Latinos had a rate of 19 per 100,000 (425 cases), and Whites had a rate of 15 per 100,000 (453 cases). In Imperial County, the rate for Latinos was 9 per 100,000 (27 cases), and that for Whites was 6 per 100,000. There were no cases among African-Americans in Imperial County. As compared with the rate in California of 35 per 100,000 (1,603 cases) among African-Americans, the rate for Latinos was 9 per 100,000, and that for Whites was 6 per 100,000 (Fig. 6.6) (CDPH, 2019).āā