Anthropourgic Foci of Plague in Vietnam: Past and Present

Suntsov, V. V.; Suntsova, N. I.; Matrosov, A. N.; Кузнецов, А. А.; Дат, Данг Туан; Мо, Лыонг Тхи; Слудский, А. А.; Куклев, Е. В.; Tarasov, Mikhail; Касьян, И. А.; Майоров, Н. В.; Астахова, Т. С.

doi:10.21055/0370-1069-2014-4-29-35

Cited by 5 publications

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“…по литературным данным, третья пандемия чумы началась с активизации природного очага чумы китая, а затем проникла на территорию вьетнама [1]. на территории социалистической республики вьетнам (срв) чуму с некоторыми перерывами регистрировали с 1898 по 2002 год [1][2][3]. на территории азии в 2010-2018 гг.…”

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“…хронологически прослеживалось распространение эпизоотий и заболеваний населения вдоль морского побережья с последующим их проникновением вглубь страны. с 1943 г. наблюдались эпидемические проявления в центральных провинциях на плато тайнгуен [2,[7][8][9]. самый высокий уровень заболеваемости приходился на период военных конфликтов во время второй индонезийской войны: в 1967 г. в стране зарегистрировано более 5 тыс.…”

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Results of Epizootiological Survey on Plague and Other Zoonotic Infections in the Northern Provinces of the Socialist Republic of Vietnam During Spring Months of 2019

Поршаков

Чумачкова

Касьян

et al. 2020

Problemy Osobo Opasnykh Infektsii

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Objective of the study is to detect circulation of plague agent and agents of other zoonotic infections (tularemia, pseudotuberculosis, leptospirosis, West Nile fever, Lassa fever, Dengue fever, Chikungunya fever, CrimeanCongo hemorrhagic fever, Q fever, Hantaviruses, tick-borne encephalitis, human monocytic ehrlichiosis, granulocytic anaplasmosis, and borreliosis) among small mammals and their ectoparasites in the territory of seven northern provinces of the Socialist Republic of Vietnam. Materials and methods. We have carried out epizootiological survey of seven northern provinces of the Socialist Republic of Vietnam (Dien Bien, Lai Chau, Lào Cai, Hà Giang, Lạng Sơn, Cao Bằng, and Quảng Ninh). Over the period of the study, 3400 trap/nights were accumulated, 179 specimens of small mammals caught, belonging to 10 species, 213 fleas of seven different species – collected, and 143 specimens of gamaside ticks falling under two species. The material gathered was investigated using enzyme immunoassay and polymerase chain reaction at the premises of mobile laboratory for monitoring and diagnostics. Results and discussion. Two-fold testing of 136 blood samples from small mammals revealed antibodies to F1 of Y. pestis in 14 (10.3 %) of them. Investigation of 158 samples of lung and kidney suspensions of small mammals showed that 22 (13.9 %) samples contained 16S rRNA of pathogenic leptospira, Leptospira spp. Analysis of 60 brain samples for the presence of Leptospira spp. revealed three (5.0 %) positive ones. 25 samples of gamaside ticks were tested for the presence of the DNA of Q fever, plague, tularemia and granulocytic anaplasmosis agents, and for the RNA of tick-borne encephalitis, human monocytic ehrlichiosis, and borreliosis agents. One sample (4 %) of gamaside ticks, Laelaps echidninus, contained RNA of Borrelia.

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Results of Epizootiological Survey on Plague and Other Zoonotic Infections in the Northern Provinces of the Socialist Republic of Vietnam During Spring Months of 2019

Поршаков

Чумачкова

Касьян

et al. 2020

Problemy Osobo Opasnykh Infektsii

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“…сформировавшиеся очаги были антропогенными, действовали в населенных пунктах. территории, используемые для сельского хозяйства рядом с населенными пунктами, стали местом, где был возможен перенос возбудителя блохами из популяции синантропных крыс диким млекопитающим [7]. основная часть случаев заражения чумой произошла в южном вьетнаме.…”

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Phylogeny and Historical-Geographical Analysis of <i>Yersinia pestis</i> Strains from Vietnam

Nikiforov

Куклева

Альхова

et al. 2020

Problemy Osobo Opasnykh Infektsii

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Objective of the work was to identify molecular-genetic peculiarities, to conduct whole genome sequencing and phylogenetic analysis of Yersinia pestis strains isolated inVietnam between 1962 and 1989.Materials and methods. We have studied the properties of 50 Y. pestis strains, carried out whole genome sequencing of 18 and fragment sequencing of 32 strains from Vietnam. Phylogenetic analysis was performed on the basis of whole genome SNPanalysis by 1391 identified SNPs. Whole genome SNP-analysis and search for marker SNPs were conducted applying Wombac 2.0 software package. Phylogenetic diagram construction was done using Maximum Likelihood algorithm.Results and discussion. Several phylogenetic branches and Y. pestis populations coinciding with geographical and historical dissemination of the strains have been distinguished. The major part of the strains from Vietnam falls under the branch designated by us as 1.ORI2v. Two strains form a separate branch together with the strain from India belonging to 1.ORI2 line, one more strain, 55-801 Saigon, is set among the strains of 1.ORI1 line. Based on the data obtained and evidence from the literature sources it can be assumed that introduction of plague into Vietnam occurred through several waves: Nha Trang city in 1898, by sea; north provinces of the country – 1908. The second wave of Y. pestis dissemination across the territory of Vietnam began in 1960s with the emergence of the strains from the natural plague focus in Yunnan province, China.

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A “Lost World” of Mammals in Eastern Indochina: Russian Studies in Vietnam

Rozhnov,

Abramov

2023

Biol Bull Russ Acad Sci

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Anthropourgic Foci of Plague in Vietnam: Past and Present

Cited by 5 publications

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Results of Epizootiological Survey on Plague and Other Zoonotic Infections in the Northern Provinces of the Socialist Republic of Vietnam During Spring Months of 2019

Results of Epizootiological Survey on Plague and Other Zoonotic Infections in the Northern Provinces of the Socialist Republic of Vietnam During Spring Months of 2019

Phylogeny and Historical-Geographical Analysis of <i>Yersinia pestis</i> Strains from Vietnam

A “Lost World” of Mammals in Eastern Indochina: Russian Studies in Vietnam

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