Bigler W J, Hoff G L, Hemmert W H, Tomas J A, Janowski H T
Am J Epidemiol. 1977 Mar;105(3):245-51. doi: 10.1093/oxfordjournals.aje.a112380.
Human brucellosis in Florida is documented for the 47-year period 1928-1975. Of the 936 cases reported in 1930-1975, more than half (505) occurred in the decade 1940-1949. The incidence declined rapidly to an average rate of five cases per year, although there was an increase in 1974 and 1975. The analysis is mainly concerned with the years 1961-1975, since more complete epidemiologic data are available for this period. Cases occurred throughout the year, with the highest incidence being between May and August. White males in the 25-35 and 35-44 deciles were most affected. Of occupations identified between 1963-1975, 44% were related to the livestock-producing industry, 16% to the meat processing industry and 28% to hunters, housewives, students and children. Twelve per cent of the cases did not fall in any of these categories. Cattle were the most probable source of human infection in the livestock industry, and swine were associated with most non-industry cases. In 1963-1975, B. suis was isolated from 10 cases and B. canis from one case; one other isolate was not identified beyond genus. Of the 27 human cases recorded during 1974-1975, 15 (56%) involved swine contact (five livestock industry, four consumers and six hunters), 11 (41%) involved cattle contact (all from the livestock and meat packing industries), and one involved contact (with both cattle and swine (livestock industry). Human cases contracted from swine were scattered statewide, whereas cases associated with cattle only occurred in counties that had )( high densities of cattle and 2) modified-certified ratings in the Brucellosis Eradication Program.
佛罗里达州有1928年至1975年这47年间人类布鲁氏菌病的记录。在1930年至1975年报告的936例病例中，超过一半（505例）发生在1940年至1949年这十年间。发病率迅速下降至每年平均5例，不过在1974年和1975年有所上升。分析主要涉及1961年至1975年，因为这一时期有更完整的流行病学数据。病例全年都有发生，发病率最高的时间是5月至8月。年龄在25 - 35岁和35 - 44岁十分位数区间的白人男性受影响最大。在1963年至1975年确定的职业中，44%与畜牧生产行业有关，16%与肉类加工业有关，28%与猎人、家庭主妇、学生和儿童有关。12%的病例不属于这些类别中的任何一种。在畜牧行业中，牛最有可能是人类感染的来源，而猪与大多数非行业病例有关。在1963年至1975年期间，从10例病例中分离出猪布鲁氏菌，从1例病例中分离出犬布鲁氏菌；另一株分离菌仅鉴定到属。在1974年至1975年记录的27例人类病例中，15例（56%）与接触猪有关（5例来自畜牧行业，4例为消费者，6例为猎人），11例（41%）与接触牛有关（均来自畜牧和肉类包装行业），1例与接触牛和猪有关（畜牧行业）。因接触猪而感染的人类病例分散在全州各地，而与牛有关的病例仅发生在牛密度高且在布鲁氏菌病根除计划中有改良认证等级的县。
