Seroprevalence survey of brucellosis among rural people in Mongolia

Background: After the transition from socialism to a market economy in 1990, human brucellosis re-emerged in Mongolia. The aim of our study was to estimate a representative seroprevalence of Brucella spp. and to determine risk factors for brucellosis seropositivity among rural people. Methods: A...

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Main Authors: Selenge Tsend, Zolzaya Baljinnyam, Bujinlkham Suuri, Enkhbayar Dashbal, Baatarkhuu Oidov, Felix Roth, Jakob Zinstag, Esther Schelling, Davaalkham Dambadarjaa
Format: Article
Language:English
Published: World Health Organization Regional Office for the Western Pacific 2014-11-01
Series:Western Pacific Surveillance and Response
Subjects:
Online Access:http://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/229/425
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author Selenge Tsend
Zolzaya Baljinnyam
Bujinlkham Suuri
Enkhbayar Dashbal
Baatarkhuu Oidov
Felix Roth
Jakob Zinstag
Esther Schelling
Davaalkham Dambadarjaa
author_facet Selenge Tsend
Zolzaya Baljinnyam
Bujinlkham Suuri
Enkhbayar Dashbal
Baatarkhuu Oidov
Felix Roth
Jakob Zinstag
Esther Schelling
Davaalkham Dambadarjaa
author_sort Selenge Tsend
collection DOAJ
description Background: After the transition from socialism to a market economy in 1990, human brucellosis re-emerged in Mongolia. The aim of our study was to estimate a representative seroprevalence of Brucella spp. and to determine risk factors for brucellosis seropositivity among rural people. Methods: A cross-sectional study with multistage random selection was conducted in eight provinces of Mongolia. Study participants were interviewed using a questionnaire to obtain their brucellosis history, current symptoms and likely risk factors. Blood samples were drawn to determine brucellosis seroprevalence. Results: A total of 2856 randomly selected rural people aged four to 90 years were enrolled in the study. The seroprevalence of Brucella spp. was 11.1% (95% confidence interval [CI]: 10.0–12.1), ranging between 2.3% and 22.6% in the eight provinces; 39.2% (n = 609) of nomadic camps had at least one seropositive participant. Risk factors associated with brucellosis seropositivity were being older than 45 years (adjusted odds ratio [AOR] = 6.9, 95% CI = 5.1–8.7) and being a veterinarian (AOR = 2.8, 95% CI = 1.5–5.0). Conclusion: Our study confirms that human brucellosis seroprevalence among rural people in Mongolia is high. Human brucellosis can be effectively controlled if high-coverage livestock mass vaccination is implemented with a coverage survey after the vaccinations to ensure completeness. This mass vaccination should be accompanied by public awareness and educational programmes.
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spelling doaj.art-24d335b990934519bc8b2ce704e338cb2022-12-21T21:30:10ZengWorld Health Organization Regional Office for the Western PacificWestern Pacific Surveillance and Response2094-73212094-73132014-11-01541320Seroprevalence survey of brucellosis among rural people in MongoliaSelenge TsendZolzaya BaljinnyamBujinlkham SuuriEnkhbayar DashbalBaatarkhuu OidovFelix RothJakob ZinstagEsther SchellingDavaalkham DambadarjaaBackground: After the transition from socialism to a market economy in 1990, human brucellosis re-emerged in Mongolia. The aim of our study was to estimate a representative seroprevalence of Brucella spp. and to determine risk factors for brucellosis seropositivity among rural people. Methods: A cross-sectional study with multistage random selection was conducted in eight provinces of Mongolia. Study participants were interviewed using a questionnaire to obtain their brucellosis history, current symptoms and likely risk factors. Blood samples were drawn to determine brucellosis seroprevalence. Results: A total of 2856 randomly selected rural people aged four to 90 years were enrolled in the study. The seroprevalence of Brucella spp. was 11.1% (95% confidence interval [CI]: 10.0–12.1), ranging between 2.3% and 22.6% in the eight provinces; 39.2% (n = 609) of nomadic camps had at least one seropositive participant. Risk factors associated with brucellosis seropositivity were being older than 45 years (adjusted odds ratio [AOR] = 6.9, 95% CI = 5.1–8.7) and being a veterinarian (AOR = 2.8, 95% CI = 1.5–5.0). Conclusion: Our study confirms that human brucellosis seroprevalence among rural people in Mongolia is high. Human brucellosis can be effectively controlled if high-coverage livestock mass vaccination is implemented with a coverage survey after the vaccinations to ensure completeness. This mass vaccination should be accompanied by public awareness and educational programmes.http://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/229/425brucellosisseroprevalence surveyrural Mongolia
spellingShingle Selenge Tsend
Zolzaya Baljinnyam
Bujinlkham Suuri
Enkhbayar Dashbal
Baatarkhuu Oidov
Felix Roth
Jakob Zinstag
Esther Schelling
Davaalkham Dambadarjaa
Seroprevalence survey of brucellosis among rural people in Mongolia
Western Pacific Surveillance and Response
brucellosis
seroprevalence survey
rural Mongolia
title Seroprevalence survey of brucellosis among rural people in Mongolia
title_full Seroprevalence survey of brucellosis among rural people in Mongolia
title_fullStr Seroprevalence survey of brucellosis among rural people in Mongolia
title_full_unstemmed Seroprevalence survey of brucellosis among rural people in Mongolia
title_short Seroprevalence survey of brucellosis among rural people in Mongolia
title_sort seroprevalence survey of brucellosis among rural people in mongolia
topic brucellosis
seroprevalence survey
rural Mongolia
url http://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/229/425
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