This survey had conducted for determining respiratory system disease and mortality trend of Ulaanbaatar city population and for developing evidence based recommendations. In accordance with the methodology we had done meta-analysis and statistical analysis on data 2004-2008. For the data analysis we used SPSS and parametric and non-parametric tests were used for determining disease changes and differences of seasonal, age and gender. In recent 5 years, in Ulaanbaatar, respiratory system disease cases are continuously leading 5 leading causes of disease. In 2008, respiratory system disease cases were 865.0 per 10000 populations and it is compare to 2004 increased by 10-30 percent. Children and women are more tend to attend to hospitals due to diseases cases. The survey also revealed that incidence of pneumonia (116.7-145.8 per 10000 populations) was the most visited case from other ICD10 causes of diseases.The mean age of mortality of respiratory system disease was 36.6±31.8 and the oldest age was 101 and the youngest was under 1 year old during 2004-2008 in Ulaanbaatar. During spring season, acute respiratory system disease, chronic bronchitis pneumonia and others respiratory system disease cases were more admitted from the respiratory system disease. Whereas, during autumn season, emphysema, during winter season bronchitis were the leading causes of respiratory system disease admission (x2=33.779, p=0.013).CONCLUSION: The statistics, 2004-2008 in Ulaanbaatar, were showing respiratory system disease trend constantly and continuously increasing. Age, gender and seasonal characteristics were signifi cantly correlated with the respiratory system disease. During these 5 years, 932 deaths were recorded and mean age of dying was 36.6±31.8.

Background:In the scope of the “School Lunch” program initiated by the Government of Mongolia, pupils of primary schools are served with meals prepared in school canteens and food products provided by food manufacturers. The safety of the provided food products must be monitored and evaluated. The purpose of our study was to evaluate the safety of the meals and food products being given to pupils in the frame of the above program.Materials and methods:Nutritious values and safety of 31 samples of school canteen meals and food products of 5 general education schools were determined using microbiological analysis methods based on Mongolian national standards. Results:The analysis results revealed that the total number of microbes in canteen meals fluctuated between 1х102 and 4х102, and no pathogens were detected in the analyzed samples. The quality of all pastry products met the Mongolian standard hygiene requirements. The variation of the total number of microbes in dairy products was 2х105 -4х105, and no pathogens were found in dairy products.Conclusion:Microbiological analyses show that the food products supplied by the contractual companies in the frame of “Lunch” program and meals from the school canteens meet Mongolian hygiene requirements.

Background: The past decade has seen an increasing involvement of private for-profit medical laboratories in the national healthcare provision. But the majority of patients still use services of public hospital laboratories. Goal: The goal of the survey was to assess the status of private and public medical laboratories based on ISO 15189 requirements. Method: The overall capacity of seven private and seven public laboratories was assessed using a questionnaire based on ten main requirements of ISO 15189. Results In general, the public laboratories scored better that the private laboratories but the difference was not significant (79 points for public laboratories vs. 72 points for private laboratories; p=0.115). The main differences were in the areas of equipment management (82 points for private vs. 92 points for public; p=0.025) and testing performances (77 points for private vs. 91 points for public; p=0.006). Out of the remaining eight assessment sections, the private laboratories scored better, but not significantly, in the areas of laboratory management and laboratory information system.

Background: Poor laboratory quality can lead to misdiagnosis and inappropriate treatment of patients. To demonstrate the quality and reliability of their services, medical laboratories seek accreditation to ISO 15189. We have initiated a project to assist laboratories in their efforts to obtain the accreditation. Goal: Conduct a gap analysis of the status of preparedness of medical laboratories for accreditation. Materials and Methods: Six laboratories are selected for participation in the project. In the first phase of the project, a gap analysis of the participant laboratories is conducted using an Excel program based on ISO 15189 requirements. Results: The findings reveal that the participant laboratories are the strongest in Organization and management of laboratory, Quality of examination results, Personnel and facility management and in Laboratory information management. The majority of the laboratories are hospital based, and their organization and management are well established and functional mostly due to centralized administrative guidance. The concept of quality control is effectively adapted in medical laboratories, therefore ensuring the quality of examinations and the data management are usually in line with the requirements. Weaker areas include Evaluation and audits, and Document control. Even though the laboratories do conduct evaluations and control, they do not do it regularly and, most importantly, do not keep records routinely, which cause the higher gap rate. Conclusion Policies to meet ISO 15189 requirements are in place in the participant laboratories, but their documentation and records keeping are insufficient.

Introduction: According to CDC guideline, common changes in patient admitted due to pneumonia caused by COVID-19 are lymphopenia (63%), leukocytosis (24-30%), leukopenia (19-25%). Neutrophil-lymphocyte ratio (NLR), lymphocyte-monocyte ratio (LMR), thrombocyte-lymphocyte ratio (PLR) are important to evaluate prognosis of infectious diseases as well as cancer.
Hematological tests are important for diagnosis, treatment and monitoring of patient with COVID-19. Our study objective was to determine the changes of leukocyte, lymphocyte, thrombocyte, NLR, LMR, and PLR in imported cases of COVID-19 into Mongolia. Method: The data such as age, gender, and laboratory test of a total of 249 cases who admitted to National Center forCommuncable Diseases (NCCD) from March 11 to July 20, 2020 was collected from information system of clinical laboratory of NCCD. Peripheral blood tests were conducted by XN 550 which is fully automated hematological analizator of Sysmex corporation, Japan. Statistical analysis such as mean, standard deviation, probability range was done by Microsoft Excel SPSS -25 program. Result: Regarding to gender, 163 (66.5%) were male and 86 (34.5%) were female. Mean age was 26 with range age of 11-80. Statistic analysis on leukocyte (mean 6.38 x 10⁹/L; P <0.000), thrombocyte (mean 283 x 10⁹/L P <0.000), neutrophil (mean 3.33 x 10⁹L; P <0.000), lymphocyte {mean 2.3 x 10⁹/L; P <0.000), NLR (mean 1.6, P <0.000), PLR parameter (mean 141.8 P <0.000> were revealed. Leukopenia (<3.98) were in 17 (6.8%), leukocytosis (>10.0) were in 11 (4.4%) cases. Lymphopenia (<1.18) were in 14 (5.6%), lymphocytosis (>3.74) were in 14 (5.6%) cases. Thrombocytosis (>369) were in 21 (8,4%), thrombocytopenia (<163) were in 4(1.6%) cases. Neutropenia (<1.56) were in 14 (5.6%) neutrophilia (>6.13) were in 15 (6%). The rest 220 (88.3%) cases have been determined no changes. PLR were 141.8 ±88.6, NLR were in 1.29 ±1.26 in 249 cases. Increased NLR and decreased PLR were in 10 (4.0%) and 114 (45.7%); increased PLR and decreased PLR in 31 (12.4%) and 28 (11.2%), respectively. Discussion Our result which is leukocytosis in 4.4%, leukopenia in 6.8%, lymphopenia in 5.6% of all imported eases ol"CO\ 1D-W. are similar to other studies. However, percentage of changes were lower than similar studies due to low rate of severe cases. It suggests, further studies clinical stages and severity of the infection need to be conducted.

Hepatitis B (HBV) and C (HCV) are viral infections which can cause acute and chronic hepatitis and are the leading causes for hepatic cirrhosis and cancer, thus creating a significant burden to healthcare systems due to the high morbidity/mortality and costs of treatment. The risk of HBV infection in an unvaccinated person from a single HBV-infected needle stick injury ranges from 6–30. The prevention of HBV infection among HCWs has become a crucial issue. HBV can effectively be prevented by vaccination. A safe and effective HBV vaccine has been available since the 1980s and can prevent acute and chronic infection with an estimated effectivity of 95%. In 2017, the São Paulo Declaration on Hepatitis was launched at the World Hepatitis Summit 2017, calling upon governments to include hepatitis B vaccines for HCWs in national immunization programs. The vaccine is 95% effective in preventing infection and its chronic consequences and has an outstanding record of safety and effectiveness. Data on current hepatitis B vaccine coverage among HCWs in Mongolia is scarce. According to Azzaya et al, the protection level of the subjects was 67.2% >100 mIU/ml, 18.8%, 11-100 mIU/mL and 14.1%, 0-10 mIU/mL based on antibody titer level respectively among the vaccinated HCWs at the 2nd Central hospital. Thus, the HBV vaccination among public and private sector HCWs in Mongolia to inform the health authorities about the HCWs HBV vaccination status along with associated problems and challenges for further improving vaccination strategy among HCWs.

Background: Vitamins are nutrients essential for human health. They act as coenzymes that help trigger important chemical reactions necessary for energy production. Reference values for vitamins help physicians evaluate the health status of patients and make clinical decisions. The aim of this study was to determine the mean values and reference intervals for some water-soluble vitamins of Mongolian adults. Materials and Methods: Three hundred and forty healthy adults (170 males and 170 females) of 17 to 69 years of age were selected for the study based on CLSI C28-P3 criteria Defining, establishing & Verifying reference interval in the clinical laboratory; Proposed Guidelines. The study was approved by the Resolution No.76 of 2018 of the Medical Ethics Review Committee of the Ministry of Health. Informed consents were taken from the selected individuals. Morning blood samples of the participants were collected under aseptic conditions. Levels of vitamins B₆, B₉, B₁₂ and vitamin C were measured using a high performance liquid chromatography method. The lower- and upper reference limits were defined as the 2.5th and 97.5th percentiles, respectively. The data were analyzed using SPSS and Excel programs. Results: The mean blood level of vitamin C was 11.88 mg/L (95% CI 10.47-13.29) for men and 9.62 mg/L (95% CI 8.11-11.13) for women. The calculated reference interval for males was 1.40-19.40 mg/L and 1.17-18.04 mg/L for females. The mean concentration of vitamin B₁₂ in the blood of males was 938.45 ng/L (95% CI 747.22-1129.68) and that of females was 864.03 ng/L (95% CI 603.81-1124.25). The reference interval for vitamin B₁₂ was 233.03-1597.00 ng/L in men and 132.45-1623.86 ng/L in women. The mean level of vitamin B₉ was 8.47 ng/mL (95% CI 5.64-11.30) for men and 6.91 ng/mL (95% CI 4.89-8.93) for women. The calculated reference interval for this vitamin in males was 1.04-24.74 ng/mL and that in females was 1.04-21.46 ng/mL. As for vitamin B₆, the mean concentration for men was 44.42 ng/mL (95% CI 37.01-51.83) and for women was 34.67 ng/mL (95% CI 29.97-39.39) with the reference intervals of 5.90-79.02 ng/mL for men and 5.27-61.72 ng/mL for women. Conclusion The reference values for vitamins B₆, B₉, B₁₂ and vitamin C of Mongolian adults do not differ significantly from those observed in other populations. The calculated reference intervals can be used in the practice of health laboratories.