Investigating the epidemiological characteristics and incidence trends of Brucellosis in the Komijan city during the years 2011 to 2019

Brucellosis is considered one of the most important diseases of humans and animals. Due to abortion, reduced milk production, infertility of infected animals, and transfer to humans, this disease is always considered from two economic and health aspects. This study was conducted to investigate the epidemiological characteristics and the incidence of Brucellosis in Kamijan city. This cross-sectional study examined demographic and epidemiological information of 379 people with Brucellosis who had referred to health centers and offices in Komijan between 1390 and 1398. Frequency distribution statistical models, independent t-test, univariate chi-square, and logistic regression were used for analysis using SPSS software version 25. The significance level of the tests was considered 0.05. The disease incidence between 1390 and 1398 was 98 per 100,000 population. The mean age of patients was 38.20±18.97 years, and the highest frequency of reported cases was in the age group of 25-44 years with 38 percent. The infection rate was higher in men (67 percent) than in women (33 percent). Occupationally, the highest disease incidence was in ranchers and farmers, with 37.9 percent. A 70.2 percent of patients lived in rural areas, and only 29.8 percent lived in urban areas; this difference was statistically significant (p<0.001). This study showed that the disease is more common among rancher-farmer men and has a specific seasonal pattern, so special attention to the high-risk group is essential. Due to the many economic and social problems caused by the disease, it is necessary to consider the infection as a health priority, and necessary education about the ways of disease transmission should be given to different population groups, especially the people at risk.