Volume 3, Issue 4 (12-2023)
Zoonosis 2023, 3(4): 49-60 |
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Khamesipour F, Doosti S, Zeinali M. Epidemiological Pattern of Human Brucellosis in Iran During 2022/23: A Descriptive Analysis of the National Surveillance Dataset. Zoonosis 2023; 3 (4) :49-60
URL: http://zoonosis.ir/article-1-103-en.html
URL: http://zoonosis.ir/article-1-103-en.html
Department of Zoonotic Disease Control, Center of Communicable Diseases Control, Ministry of Health and Medical Education , mzeinali411@gmail.com
Abstract: (61 Views)
Brucellosis remains endemic in Iran, primarily transmitted to humans through contact with infected livestock and consumption of unpasteurized dairy products. This study describes the spatiotemporal and demographic/occupational profile of human brucellosis cases in Iran during Year March 2022–March 2023. We conducted a descriptive cross-sectional analysis of Iran’s national human brucellosis surveillance dataset from March 2022–March 2023. Variables included province, month/season, residential setting (urban/rural/peri-urban/nomadic/mobile), sex, age group, and occupation. Results are presented as counts and proportions. A total of 22073 cases were reported. Five provinces—Razavi Khorasan (4,034; 18.3%), Hamadan (1,941; 8.8%), West Azerbaijan (1,903; 8.6%), Lorestan (1,743; 7.9%), and East Azerbaijan (1,479; 6.7%)—accounted for 50.3% of all cases. Males represented 57.7% and females 42.3% (male-to-female ratio ≈1.36). Rural areas contributed 71.1% of cases. Middle-aged groups 30–39 years (22.3%) and 40–49 years (20.6%) predominated. By occupation, housewives (29.8%) and livestock breeders (27.8%) were most affected. Seasonal peaks occurred in June (12.0%) and July (12.1%); summer accounted for 33.0% and spring for 28.8% of cases. The 1401 pattern highlights high burden in selected western–northwestern provinces and Razavi Khorasan, a strong rural predominance, middle-aged adults as the most affected groups, and the key role of household/occupational exposures linked to livestock and traditional dairy. “One Health” measures—targeted vaccination of small ruminants in high-burden provinces, dairy hygiene, occupational safety, and pre-peak education—could reduce disease burden.
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Subject:
Medical Microbiology
Received: 2025/11/16 | Accepted: 2025/12/21 | Published: 2025/12/26
Received: 2025/11/16 | Accepted: 2025/12/21 | Published: 2025/12/26
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