National Center for Communicable Diseases
National Center for Communicable Diseases
Budbazar E.,National Center for Communicable Diseases |
Vanchinkhuu S.,UNICEF |
Blanc D.C.,Regional Immunization Specialist |
Grundy J.,University of Melbourne
International Journal for Equity in Health | Year: 2012
Introduction. In recent years, the country of Mongolia (population 2.8 million) has experienced rapid social changes associated with economic growth, persisting socio-economic inequities and internal migration. In order to improve health access for the urban poor, the Ministry of Health developed a "Reaching Every District" strategy (RED strategy) to deliver an integrated package of key health and social services. The aim of this article is to present findings of an assessment of the implementation of the RED strategy, and, on the basis of this assessment, articulate lessons learned for equitable urban health planning. Methods. Principal methods for data collection and analysis included literature review, barrier analysis of health access and in-depth interviews and group discussions with health managers and providers. Findings. The main barriers to health access for the urban poor relate to interacting effects of poverty, unhealthy daily living environments, social vulnerability and isolation. Implementation of the RED strategy has resulted in increased health access for the urban poor, as demonstrated by health staff having reached new clients with immunization, family planning and ante-natal care services, and increased civil registrations which enable social service provision. Organizational effects have included improved partnerships for health and increased motivation of the health workforce. Important lessons learned from the early implementation of the RED strategy include the need to form strong partnerships among stakeholders at each level of the health system and in the community, as well as the need to develop a specific financing strategy to address the needs of the very poor. The diverse social context for health in an urban poor setting calls for a decentralized planning and partnership strategy, but with central level commitment towards policy guidance and financing of pro-poor urban health strategies. Conclusions: Lessons from Mongolia mirror other international studies which point to the need to measure and take action on the social determinants of health at the local area level in order to adequately reduce persistent inequities in health care access for the urban poor. © 2012 Lhamsuren et al; licensee BioMed Central Ltd.
Todd C.S.,Asia Pacific Regional Office |
Aumakhan B.,National Center for Communicable Diseases |
Delegchoimbol A.,UNAIDS Mongolia |
Drug and Alcohol Dependence | Year: 2013
Background: Central Asia is culturally and demographically diverse, both between and within its respective countries. That diversity is represented in the range of individual, network, community, and structural risks for female sex workers (FSWs) regionally. FSWs have several risk factors for HIV acquisition and transmission including behavioral, biological, and structural risk factors. Across Central Asia, sexual risks have become conflated with risks associated with injection and non-injection illicit drug use. Methods: Peer-reviewed literature databases and gray literature were searched for articles on sex work in Central Asia. The medial subject heading (MeSH) of "sex work" was cross-referenced with terms associated with Uzbekistan, Tajikistan, Turkmenistan, Kazakhstan, Kyrgyzstan, Mongolia, and Afghanistan. Results: HIV prevalence data for FSWs suggest sustained or increasing prevalence in the region. There are increasing data directly linking HIV among FSWs to injection drug use; odds of HIV are up to 20 times higher among FSWs reporting injecting drug use. Though injecting drug use among FSWs is rare in some settings, recreational drugs and alcohol use limits other risk reduction behaviors, such as condom use. Conclusions: The Central Asian HIV epidemic has traditionally been assumed to be driven nearly exclusively by drug use, resulting in surveillance systems focused on parenteral transmission. The reviewed data highlight limited attention to characterizing the burden of HIV and risk factors for HIV acquisition and transmission among FSWs who use drugs. Moving forward will require enhanced HIV surveillance and research to inform HIV prevention approaches to address all levels of HIV risks affecting FSWs in Central Asia. © 2013.
Dondog B.,International Agency for Research on Cancer |
Lise M.,Aviano Cancer Center |
Baldandorj B.,National Center for Communicable Diseases |
Franceschi S.,International Agency for Research on Cancer
European Journal of Cancer Prevention | Year: 2011
The incidence of hepatocellular carcinoma (HCC) in Mongolia is far higher than that of any other cancer in the country, and among the highest worldwide. The relative importance of infection with hepatitis B virus (HBV) and hepatitis C virus (HCV) is unclear. We reviewed (i) medical records for 963 patients with HCC and 941 patients with cirrhosis admitted for the first time to the National Cancer Center of Mongolia and the National Center for Communicable Diseases, respectively, from 2000 to 2009, and (ii) articles published from 1990 to 2010 on the seroprevalence of hepatitis B surface antigen (HBsAg) and antibodies against hepatitis C virus (anti-HCV) among individuals with and without liver disease. Among those with HCC, the seroprevalence of HBsAg, anti-HCV and dual infections was 50, 27 and 21%, respectively. Corresponding percentages among the patients with cirrhosis were 40, 39, and 20%. In both diseases, HCV infection was relatively more prevalent in women than in men and, in cirrhosis, in patients older than 45 years of age. In healthy individuals, from published articles, anti-HCV seroprevalence steadily increased with age (from 3% at age 0-5 years to 34% at age =50 years), whereas HBsAg seroprevalence stayed constant at about 8%. The future benefit of childhood vaccination against HBV in Mongolia will be undermined by the consequences of a severe HCV epidemic and a uniquely high burden of dual infections. © 2010 Wolters Kluwer Health.
Hong S.-H.,Centers for Disease Control and Prevention |
Anu D.,National Center for Communicable Diseases |
Jeong Y.-I.,Centers for Disease Control and Prevention |
Abmed D.,National Center for Communicable Diseases |
And 3 more authors.
American Journal of Tropical Medicine and Hygiene | Year: 2014
The Giardia and Cryptosporidium species are widespread and frequent diarrhea-related parasites affecting humans and other mammalian species. The prevalence of these parasites in Mongolia is currently unknown. Therefore, we performedmolecular analyses of G. duodenalis and C. parvum in stool samples from 138 patients hospitalized with diarrhea in Mongolia using nested polymerase chain reaction (PCR). A total of 5 (3.62%) and 7 (5.07%) fecal samples were positive for G. duodenalis and C. parvum, respectively. Giardia duodenalis and C. parvum infections were prevalent in children < 9 years of age. The assemblage-specific fragment patterns for the b-giardin gene of G. duodenalis revealed that all five samples testing positive belonged to Assemblage A by the PCR-restriction fragment polymorphism method. For sequencing and phylogenetic analysis of the 18S rDNA and HSP70 genes of all seven patients testing positive the genes were further identified to be of the C. parvum bovine genotype. This study is the first to report the prevalence of G. duodenalis and C. parvum and its molecular characterization of fecal samples from individuals with diarrhea in Mongolia. Copyright © 2014 by The American Society of Tropical Medicine and Hygiene.
PubMed | Rwanda Biomedical Center, National Institute for Medical Research, World Health Organization, University of California at Los Angeles and 5 more.
Type: Journal Article | Journal: The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease | Year: 2016
pSETTING: Households in Malawi, Mongolia, Myanmar, the Philippines, Rwanda, Tanzania, Viet Nam and Zambia.OBJECTIVE To assess the relationship between household socio-economic level, both relative and absolute, and individual tuberculosis (TB) disease.We analysed national TB prevalence surveys from eight countries individually and in pooled multicountry models. Socio-economic level (SEL) was measured in terms of both relative household position and absolute wealth. The outcome of interest was whether or not an individual had TB disease. Logistic regression models were used to control for putative risk factors for TB disease such as age, sex and previous treatment history.Overall, a strong and consistent association between household SEL and individual TB disease was not found. Significant results were found in four individual country models, with the lowest socio-economic quintile being associated with higher TB risk in Mongolia, Myanmar, Tanzania and Viet Nam.TB prevalence surveys are designed to assess prevalence of disease and, due to the small numbers of cases usually detected, may not be the most efficient means of investigating TB risk factors. Different designs are needed, including measuring the SEL of individuals in nested case-control studies within TB prevalence surveys or among TB patients seeking treatment in health care facilities.
PubMed | National Institute of Medicine, National Center for Communicable Diseases and Jichi Medical University
Type: Journal Article | Journal: Journal of medical virology | Year: 2016
Despite the high endemicity of hepatitis A virus (HAV) in Mongolia, the genetic information on those HAV strains is limited. Serum samples obtained from 935 patients with acute hepatitis in Ulaanbaatar, Mongolia during 2004-2013 were tested for the presence of HAV RNA using reverse transcription-PCR with primers targeting the VP1-2B region (481 nucleotides, primer sequences at both ends excluded). Overall, 180 patients (19.3%) had detectable HAV RNA. These 180 isolates shared 94.6-100% identity and formed four phylogenetic clusters within subgenotype IA. One or three representative HAV isolates from each cluster exhibited 2.6-3.9% difference between clusters over the entire genome. Cluster 1 accounted for 65.0% of the total, followed by Cluster 2 (30.6%), Cluster 3 (3.3%), and Cluster 4 (1.1%). Clusters 1 and 2 were predominant throughout the observation period, whereas Cluster 3 was undetectable in 2009 and 2013 and Cluster 4 became undetectable after 2009. The Mongolian HAV isolates were closest to those of Chinese or Japanese origin (97.7-98.5% identities over the entire genome), suggesting the evolution from a common ancestor with those circulating in China and Japan. Further molecular epidemiological analyses of HAV infection are necessary to investigate the factors underlying the spread of HAV and to implement appropriate prevention measures in Mongolia.
Dobler C.C.,University of New South Wales |
Dobler C.C.,University of Sydney |
Korver S.,National Center for Communicable Diseases |
Batbayar O.,National Center for Communicable Diseases |
And 7 more authors.
Emerging Infectious Diseases | Year: 2015
In Ulaanbaatar, Mongolia, multidrug-resistant tuberculosis (MDR TB) was diagnosed for more than a third of new sputum smear–positive tuberculosis patients for whom treatment had failed. This finding suggests a significant risk for community-acquired MDR TB and a need to make rapid molecular drug susceptibility testing available to more people. © 2015, Centers for Disease Control and Prevention (CDC). All rights reserved.
Buyankhishig B.,National Center for Communicable Diseases |
Naranbat N.,National Center for Communicable Diseases |
Mitarai S.,Research Institute for Tuberculosis |
Rieder H.L.,International Union Against Tuberculosis and Lung Disease |
Rieder H.L.,University of Zürich
International Journal of Tuberculosis and Lung Disease | Year: 2011
BACKGROUND: Drug-resistant tuberculosis (TB) has emerged as an obstacle to effective TB control. SETTING: The eight district and 21 province TB dispensaries and the two TB hospitals comprising the diagnostic centers for TB in Mongolia. METHODS: To investigate drug resistance levels among new and retreated TB cases. Specifi cally, we determined the prevalence of resistance to rifampin, streptomycin, isoniazid and ethambutol among TB patients with and without prior anti-tuberculosis treatment. RESULTS: A total of 850 patients (74.1% of eligible and 78.0% of patients with a specimen) had Mycobacterium tuberculosis isolated and are the subject of this analysis. Of these, 200 had a history of prior treatment and 650 did not. Any multidrug resistance was found in 7.5% (95%CI 5.9-9.5), with respectively 27.5% (95%CI 21.8-34.1) and 1.4% (95%CI 0.7-1.6) of patients with and without prior history of treatment. CONCLUSIONS: The most conspicuous fi nding in our survey was the relatively low prevalence of multidrug resistance among patients without a history of prior treatment, as compared to very high prevalence among previously treated patients. This suggests that retreatment is defi cient and poses a threat to continued transmission, which has not yet manifested itself among new patients. © 2011 The Union.
PubMed | University of Sydney and National Center for Communicable Diseases
Type: | Journal: Tuberculosis (Edinburgh, Scotland) | Year: 2016
Mongolia has high and rising rates of multi-drug resistant tuberculosis (MDR-TB). Spatio-temporal and programmatic evidence suggests a major contribution from MDR-TB transmission, but genotypic evidence has not been assessed.All MDR-TB cases identified during 2012 were examined. Demographic and bacteriological data were obtained from the National Tuberculosis Reference Laboratory. Isolates of Mycobacterium tuberculosis from culture-confirmed category 1 treatment failures were genotyped using 24-loci mycobacterium interspersed repetitive unit (MIRU-24) analysis.Of the 210 MDR-TB cases identified, 115 (54.8%) were treatment failures (34.8% category 1; 20.0% category 2). Streptomycin resistance was present in 156 (74.3%) cases; including 55/73 (75.3%) category 1 treatment failures who had never been exposed to streptomycin. Among category 1 treatment failures, Beijing lineage strains predominated (88.0%; 59/67 of genotyped isolates). MIRU-24 clustering was documented in 62.7% (42/67) of strains; 55.2% (37/67) remained clustered when drug susceptibility test results were considered. In total 59.5% (25/42) of clustered strains were Beijing lineage and demonstrated in-vitro resistance to all first-line drugs tested.The MDR-TB epidemic in Mongolia appears to be driven by primary transmission of Beijing lineage strains resistant to all first-line drugs. Enhanced infection control strategies together with early MDR-TB case detection and appropriate treatment are necessary to limit escalation of the MDR-TB epidemic.
PubMed | Institute of Tropical Medicine, National Center for Communicable Diseases, Ulaanbaatar University and Research Institute of Tuberculosis
Type: Journal Article | Journal: International journal of mycobacteriology | Year: 2016
The aim of this study was to assess the performance of a molecular line probe assay, GenoType MTBDRplus, for rapid detection of rifampicin and isoniazid resistance in the Mongolian situation. The sensitivity and specificity of GenoType MTBDRplus to detect rifampicin and isoniazid resistance-associated mutations in culture specimens and directly in smear-positive clinical specimens was examined.218 MDR-TB subjects aged between 14 and 75years old from eight districts in Ulaanbaatar city (between July 2009 and May 2010) were included in this study .The GenoType Mycobacterium tuberculosis drug resistance first line (MTBDR plus) assay (Hain Life-science, Nehren, Germany) was tested on 109 clinical isolates and directly on 41 sputum specimens for the ability to detect the resistances. Results were compared with conventional culture and drug susceptibility testing on solid medium.The high correlation of the results from GenoType MTBDRplus and conventional drug susceptibility testing was obtained from this study. The results clearly showed a high performance of GenoType MTBDRplus with almost 100% accuracy for all the important indicators, such as sensitivity, specificity, positive and negative predictive values and detection of rifampicin resistance. Discrepancies were obtained in comparison with DNA sequencing results.The Genotype MTBDRplus assay was demonstrated as a rapid, reliable and highly accurate tool for early detection of MDR-TB through examining smear positive cases.