Figure 2: Monthly distribution and incidence trend of brucellosis in Jinzhou from 1998 to 2015. (a) Cases of brucellosis in different months of a year. There were 554 cases in May from 1998 to 2015, which was the peak period of brucellosis. The lowest incidence fell in spare time during the winter. (b) Monthly incidence trend of brucellosis each year from 1998 to 2015. The incidence trend and characteristic basically coincided in different years, except for 2015 when 115 patients were reported in July.