Publications by authors named "Oyunbaatar Altanbayar"

Background: Coronavirus disease (COVID-19) has had a significant impact globally, and extensive genomic research has been conducted on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) lineage patterns and its variants. Mongolia's effective response resulted in low prevalence until vaccinations became available. However, due to the lack of systematically collected data and absence of whole genome sequencing capabilities, we conducted a two-stepped, nationally representative molecular epidemiologic study of SARS-CoV-2 in Mongolia for 2020 and 2021.

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Background: The COVID-19 pandemic has global impacts but is relatively understudied in developing countries. Mongolia, a lower-middle-income country, instituted strict control measures in early 2020 and avoided widespread transmission until vaccines became available in February, 2021. Mongolia achieved its 60% vaccination coverage goal by July 2021.

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Objectives: , the main ingredient of Altan Arur 5, has been used for many years in traditional medicine. This medicine is more effective than other drugs and is used to treat chronic gastritis and gastrointestinal disorders such as peptic ulcers and esophageal reflux. Other ingredients of Altan Arur 5 are (pomegranate), tulip seeds, black balm, and excreta of .

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Article Synopsis
  • Helicobacter pylori infection is linked to serious stomach issues like gastritis, ulcers, and stomach cancer, with virulence increasing due to specific genetic factors.
  • Researchers studied the cagA gene in H. pylori strains from Mongolian patients, finding that most isolates were of the Western type, with variations in the EPIYA region that indicate differences in virulence.
  • The presence of EPIYA-A segments in some strains suggests they may be less virulent, raising questions for further research regarding their potential role in host cell interactions and disease severity.
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Background: With the global spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in early 2020, Mongolia implemented rapid emergency measures and did not report local transmission until November 2020. We conducted a national seroprevalence survey to monitor the burden of SARS-CoV-2 in Mongolia in the months surrounding the first local transmission.

Methods: During October-December 2020, participants were randomly selected using age stratification and invited for interviews and blood samples at local primary health centres.

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