ArticleInternational journal of microbiology2026
Resurgence of Human Brucellosis in Khuzestan Province, Southwestern Iran: Epidemiological Trends From 2017 to 2024.
Article in International journal of microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Resurgence of Human Brucellosis in Khuzestan Province, Southwestern Iran: Epidemiological Trends From 2017 to 2024.International journal of microbiology · 2026Article
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5 authors.
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Abstract
Brucellosis is a neglected zoonosis with a considerable disease burden in livestock-dependent areas. Khuzestan Province, southwestern Iran, exhibits diverse ecological and agricultural landscapes that may drive heterogeneous transmission. Knowledge of recent epidemiological trends is important for targeted control. We aimed to characterize the temporal and demographic patterns of human brucellosis in Khuzestan from 2017 to 2024, with emphasis on changes observed after 2021. We analyzed aggregated surveillance data for all laboratory-confirmed human brucellosis cases reported in Khuzestan Province between 2017 and 2024. Crude annual incidence rates were calculated using population denominators linearly interpolated from the 2017 census and the 2023 official estimate. Log-linear trend regression, performed using Joinpoint software, estimated the annual percentage changes (APCs) in incidence case counts. Poisson's regression with population offset quantified period relative risks (RRs) comparing 2022-2024 with 2017-2021. Chi-square tests assessed temporal shifts in distributions across age groups (15 categories), sex, residence (rural/urban/nomadic), and four geographical zones (Northern Highlands, Central Plains, Southern Coastal and Marshland, and Western Borderlands). A total of 3923 cases were reported. Crude incidence remained stable at 7.9-8.1 per 100,000 during 2017-2019, declined to 6.3-7.0 in 2020-2021, and then increased sharply to 12.3-14.7 in 2022-2024 (APC = +10.7
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