Volume 3, Issue 4 (12-2023)
Zoonosis 2023, 3(4): 0-0 |
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دوستی س, Doosti S, Khamesipour F. Epidemiological Pattern of Human Brucellosis in Iran During 2022/23 (Year 1401): A Descriptive Analysis of the National Surveillance Dataset. Zoonosis 2023; 3 (4)
URL: http://zoonosis.ir/article-1-103-en.html
URL: http://zoonosis.ir/article-1-103-en.html
Ministry of Health , faham.khamesipour@yahoo.com
Abstract: (23 Views)
Background: Brucellosis remains endemic in Iran, primarily transmitted to humans through contact with infected livestock and consumption of unpasteurized dairy products. Despite ongoing animal health programs, the burden is still high in several provinces. This study describes the spatiotemporal and demographic/occupational profile of human brucellosis cases in Iran during Year 1401 (March 2022–March 2023).
Methods: We conducted a descriptive cross-sectional analysis of Iran’s national human brucellosis surveillance dataset for 1401 (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.
Results: 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.
Conclusions: 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. These findings inform prioritization and targeted interventions.
Methods: We conducted a descriptive cross-sectional analysis of Iran’s national human brucellosis surveillance dataset for 1401 (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.
Results: 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.
Conclusions: 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. These findings inform prioritization and targeted interventions.
Keywords: Brucellosis, Iran, Epidemiology, Zoonosis, Rural health, Unpasteurized dairy, Livestock occupations
Book Review: Original Article |
Subject:
Medical Microbiology
Received: 2025/11/16 | Accepted: 2025/12/21
Received: 2025/11/16 | Accepted: 2025/12/21
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