Mohammad Ebrahimipour1, Christine M Budke2, Mohsen Najjari3, Rudi Cassini4, Naeimehossadat Asmarian5. 1. Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran. 2. Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX, United States. 3. Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Ghaem Educational, Research and Treatment Center, Mashhad University of Medical Sciences, Mashhad, Iran. 4. Department of Animal Medicine, Production and Health, University of Padova, Legnaro PD, Italy. 5. Department of Biostatistics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran. Electronic address: Ns.asmarian@gmail.com.
Abstract
BACKGROUND: Cystic echinococcosis (CE) is a zoonotic disease that presents a public health challenge and a socioeconomic burden on developing areas in the Middle East. This study used spatial methods to assess the distribution of surgically managed CE cases in an endemic region of north-eastern Iran. METHODS: For the years 2001-2007, a case series of all 446 patients that were surgically treated for CE in a referral hospital in north-eastern Iran was evaluated. Patients seen at the referral hospital represent 35 counties in three provinces (Razavi Khorasan, North Khorasan, and South Khorasan). A Besag, York and Mollie (BYM) spatial model was used to produce smoothed standardized incidence ratios (SIRs) for surgically managed cases of CE for the 35 counties represented in this study. RESULTS: Out of 446 surgically managed patients, 54% were male. County-level crude incidence rates ranged from 0 to 3.27 cases per 100,000 population. The highest smoothed SIR (3.46) was for Sarakhs County in the province of Razavi Khorasan, while the lowest smoothed SIR (0.05) was for Birjand County, located in the province of South Khorasan. CONCLUSION: SIRs for CE were highest for the province of Razavi Khorasan, which has large ranching and agricultural industries. Additional studies are needed to better evaluate the role of climate, land cover, and livestock rearing on local Echinococcus granulosus transmission in Iran.
BACKGROUND:Cystic echinococcosis (CE) is a zoonotic disease that presents a public health challenge and a socioeconomic burden on developing areas in the Middle East. This study used spatial methods to assess the distribution of surgically managed CE cases in an endemic region of north-eastern Iran. METHODS: For the years 2001-2007, a case series of all 446 patients that were surgically treated for CE in a referral hospital in north-eastern Iran was evaluated. Patients seen at the referral hospital represent 35 counties in three provinces (Razavi Khorasan, North Khorasan, and South Khorasan). A Besag, York and Mollie (BYM) spatial model was used to produce smoothed standardized incidence ratios (SIRs) for surgically managed cases of CE for the 35 counties represented in this study. RESULTS: Out of 446 surgically managed patients, 54% were male. County-level crude incidence rates ranged from 0 to 3.27 cases per 100,000 population. The highest smoothed SIR (3.46) was for Sarakhs County in the province of Razavi Khorasan, while the lowest smoothed SIR (0.05) was for Birjand County, located in the province of South Khorasan. CONCLUSION: SIRs for CE were highest for the province of Razavi Khorasan, which has large ranching and agricultural industries. Additional studies are needed to better evaluate the role of climate, land cover, and livestock rearing on local Echinococcus granulosus transmission in Iran.
Authors: Naeimehossadat Asmarian; Seyyed Mohammad Taghi Ayatollahi; Zahra Sharafi; Najaf Zare Journal: Int J Environ Res Public Health Date: 2019-11-13 Impact factor: 3.390
Authors: Mohammad Amin Ghatee; Koorosh Nikaein; Walter Robert Taylor; Mehdi Karamian; Hasan Alidadi; Zahra Kanannejad; Faezeh Sehatpour; Fateme Zarei; Gholamreza Pouladfar Journal: BMC Public Health Date: 2020-10-27 Impact factor: 3.295