Seroprevalence survey of brucellosis among rural people in Mongolia
10.2471/WPSAR.2014.5.1.002
- Author:
Tsend Selenge
;
Baljinnyam Zolzaya
;
Suuri Bujinlkham
;
Dashbal Enkhbayar
;
Oidov Baatarkhuu
;
Roth Felix
;
Zinstag Jakob
;
Schelling Esther
;
Dambadarjaa Davaalkham
- Publication Type:Journal Article
- From:
Western Pacific Surveillance and Response
2014;5(4):13-20
- CountryWHO-WPRO
- Language:English
-
Abstract:
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.
