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Socioeconomic and behavioural determinants of malaria among the migrants in gold mining,rubber and oil palm plantation areas in Myanmar

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Infectious Diseases of Poverty 2017年第1期6卷 1262-1269页

作者： Htin Zaw Soe aung thi Ni Ni Aye University of Community Health MagwayMyanmar Department of Public Health Vector-borne Disease Control Programnay Pyi TawMyanmar

Background:Malaria is a major public health problem in Myanmar.Migrant populations are at high risk of contracting malaria and its control is more difficult than for settled population.Studies on malaria and migration are rare in Myanmar.this study was undertaken with the main objective of identifying socioeconomic and behavioural determinants of malaria among the migrant workers involved in gold mining,rubber and oil palm plantations.Methods:A cross-sectional analytic study was conducted using pretested interview-administered questionnaires among internal migrants(n=406)in the malaria endemic townships of Shwegyin,Bago Region,Thanbyuzayat,Mon State and Kawthaung,Taninthayi Region from August to November,2015.Data were collected by well-trained Basic Health Staff members in study areas,and then analysed by SPSS version 16.0 using Chi-square tests with significant level at 0.05.Results:Majority of participants were male,Bahmar nationals,married and with primary basic education level and below.The mean duration of migratory work was 4.51 years.43.1%of them gave definite previous history of malaria within last two years during migration.92.9%(377/406)of them always used bed nets.Malaria determinants found were male gender(OR=1.84,95%CI:1.22-2.77;P=0.0040),habit of going out at dawn(OR=2.36,95%CI:1.58-3.52;P<0.001),usual sleeping indoors(OR=2.14,95%CI:1.04-4.42;P=0.036),torn bed net or net with large hole(s)(OR=2.0,95%CI:1.21-3.3;P=0.006),habit of not always sleeping under a bed net at night(OR=2.02,95%CI:1.15-3.52;P=0.014),alcohol drinking(OR=2.71,95%CI:1.73-4.26;P<0.001)and failure to attend malaria health talk(OR=1.78,95%CI:1.2-2.65;P=0.004).Conclusions:The present study highlighted that it is warranted to launch an effective health education programme for malaria,and to encourage the proper use of insecticide-treated bed nets,blankets and/or mufflers and mosquito repellents to reduce the occurrence of malaria among the migrants.

关键词： Malaria Determinants Migrant Myanmar

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Knowledge,access and utilization of bednets among stable and seasonal migrants in an artemisinin resistance containment area of Myanmar

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Infectious Diseases of Poverty 2017年第1期6卷 1227-1234页

作者： Wint Phyo Than Tin Oo Khin Thet Wai aung thi Philip Owiti Binay Kumar Hemant Deepak Shewade Rony Zachariah Regional Public Health Department Ministry of HealthBagoMyanmar Department of Medical Research Ministry of HealthYangonMyanmar National Malaria Control Program Ministry of HealthNaypyitawMyanmar Academic Model Providing Access to Healthcare(AMPATH) EldoretKenya GAVI the Vaccine Alliance GenevaSwitzerland International Union Against Tuberculosis and Lung Disease(The Union) South-East Asia Regional OfficeNew DelhiIndia Medecins Sans Frontieres Operational Research Unit(LuxOR)Luxembourg CityLuxembourg

Background:Myanmar lies in the Greater Mekong sub-region of South-East Asia faced with the challenge of emerging resistance to artemisinin combination therapies(ACT).Migrant populations are more likely than others to spread ACT resistance.A vital intervention to reduce malaria transmission,resistance spread and eliminate malaria is the use of bed nets.Among seasonal and stable migrants in an artemisinin resistance containment region of Myanmar,we compared a)their household characteristics,b)contact with health workers and information material,and c)household knowledge,access and utilization of bed nets.Methods:Secondary data from community-based surveys on 2484 migrant workers(2013 and 2014,Bago Region)were analyzed of which 37%were seasonal migrants.Bed net access and utilization were assessed using a)availability of at least one bed net per household,and b)one bed net per two persons,and c)proportion of household members who slept under abed net during the previous night(Indicator targets=100%).Results:Over 70%of all migrants were from unstable work settings with short transitory stays.Average household size was five(range 1-25)and almost half of all households had children under-five years.Roughly 10%of migrants were night-time workers.Less than 40%of households had contact with health workers and less than 30%had exposure to information education and communication(IEC)materials,the latter being significantly lower among seasonal migrants.About 70%of households were aware of the importance of insecticide-treated bed-nets/long-lasting insecticidal nets(ITNs/LLINs),but knowledge on insecticide impregnation and retreatment of ITNs was poor(this study reveals important short-falls in knowledge,access and utilization of bed n

关键词： Operational research Malaria Transmission Artemisinin Greater Mekong sub-region Mosquito

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Assessment of household ownership of bed nets in areas with and without artemisinin resistance containment measures in Myanmar

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Infectious Diseases of Poverty 2018年第1期7卷 199-205页

作者： Thae Maung Maung Tin Oo Khin Thet Wai Thaung Hlaing Philip Owiti Binay Kumar Hemant Deepak Shewade Rony Zachariah aung thi Department of Medical Research Ministry of Health and SportsYangonMyanmar Department of Public Health Ministry of Health and SportsNay Pyi TawMyanmar Academic Model Providing Access to Healthcare(AMPATH) EldoretKenya Gavi the Vaccine AllianceGenevaSwitzerland International Union Against Tuberculosis and Lung Disease(The Union) South-East Asia Regional OfficeNew DelhiIndia Medecins Sans Frontieres Brussels Operational CentreLuxembourg cityLuxembourg National Malaria Control Program Ministry of Health and SportsNay Pyi TawMyanmar

Background:Myanmar lies in the Greater Mekong Subregion where there is artemisinin-resistant Plasmodium falciparum malaria.As the artemisinin compound is the pillar of effective antimalarial therapies,containing the spread of artemisinin resistance is a national and global priority.The use of insecticide-treated bed nets/long-lasting insecticidal nets(ITNs/LLINs)is the key intervention for ensuring the reduction of malaria transmission and the spread of resistant strains,and for eventually eliminating malaria.this study aimed at assessing household ownership of,access to,and utilization of bed nets in areas of Myanmar with and without artemisinin resistance containment measures.Methods:Secondary data from a nationwide community-based malaria survey conducted by the National Malaria Control Program in 2014 were analyzed.Based on evidence of artemisinin resistance,Myanmar was divided into tiers 1,2,and 3:townships in tiers 1 and 2 were aggregated as the Myanmar Artemisinin Resistance Containment(MARC)areas and were compared with tier 3 townships,which were defined as non-MARC areas.The chi-square test was used to compare groups,and the level of significance was set at P≤0.05.Results:Of the 6328 households assessed,97.2%in both MARC and non-MARC areas had at least one bed net(any type),but only 63%of households had ITNs/LLINs.Only 44%of households in MARC areas and 24%in non-MARC areas had adequate numbers of ITNs/LLINs(one ITN/LLIN per two persons,Pthis study highlights the nationwide shortfalls in the ownership of,access to,and utilization of ITNs/LLINs in Myanmar,which is of particular concern in terms of containing the spread of artemisinin resistan

关键词： Malaria Insecticide-treated bed nets Long-lasting insecticidal nets Myanmar artemisinin resistance containment Bed nets ownership Bed nets access Bed nets utilization Myanmar

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Predictors of malaria rapid diagnostic test positivity in a high burden area of Paletwa Township, Chin State in Western Myanmar

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Infectious Diseases of Poverty 2021年第1期10卷 26-35页

作者： Pyae Linn aung Myat Thu Soe thit Lwin Oo aung Khin aungthi Yan Zhao Yarning Cao Liwang Cui Myat Phone Kyaw Daniel M.Parker Myanmar Health Network Organization YangonMyanmar Myanmar Health Assistant Association YangonMyanmar Department of Public Health Ministry of Health and SportsNayPyiTawMyanmar Department of Immunology College of Basic Medical ScienceChina Medical UniversityShenyang 110122LiaoningChina Division of Infectious Diseases and International Medicine Department of Internal MedicineMorsani College of MedicineUniversity of South Florida3720 Spectrum BoulevardSuite 304TampaFL 33612USA Department of Population Health and Disease Prevention Department of EpidemiologyUniversity of CaliforniaIrvineUSA.

Background:Despite major reductions in malaria burden across Myanmar,clusters of the disease continue to persist in specific subregions.this study aimed to assess the predictors of test positivity among people living in Paletwa Township of Chin State,an area of persistently high malaria burden.Methods:Four villages with the highest malaria incidence from Paletwa Town ship were purposively selected.The characteristics of 1045 subjects seeking malaria diagnosis from the four assigned village health volunteers from January to December,2018 were retrospectively analyzed.Their household conditions and surroundings were also recorded using a checklist.Descriptive statistics and logistic regression models were applied to investigate potential associations between individual and household characteristics and malaria diagnosis.Results:In 2017,the Paletwa township presented 20.9%positivity and an annual parasite index of 46.9 cases per 1000 people.Plasmodium falciparum was the predominant species and accounted for more than 80.0%of all infections.Among 1045 people presenting at a clinic with malaria symptoms,31.1% were diagnosed with malaria.Predictors for test positivity included living in a hut[adjusted odds ratios(aOR):2.3,95%confidence intervals(CI ):1.2-4.6],owning farm animals(aOR:1.7,95% CI:1.1-3.6),using non-septic type of toilets(aOR:1.9,95%CI:1.1-8.4),presenting with fever(aOR:1.9,95%CI:1.1-3.0),having a malaria episode within the last year(aOR:2.9,95%CI:1.45.8),traveling outside the village in the previous 14 days (aOR:4.5,95%CI:1.5-13.4),and not using bed nets(aOR:3.4,95%CI:2.3-5.1).There were no statistically significant differences by age or gender in this present analysis.Conclusions:The results from this study,including a high proportion of P.falciparum infections,little difference in age,sex,or occupation,suggest that malaria is a major burden for these study villages.Targeted health education campaigns should be introduced to strengthen synchronous diagnosis-seeking behaviors,tighten treatment adheren ce,

关键词： Malaria Trend Risk Endemic area Myanmar

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From control to elimination:a spatial-temporal analysis of malaria along the China-Myanmar border

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Infectious Diseases of Poverty 2020年第6期9卷 63-75页

作者： Fang Huang Li Zhang Jing-Bo Xue Hong-Ning Zhou aung thi Jun Zhang Shui-Sen Zhou Zhi-Gui Xia Xiao-Nong Zhou National Institute of Parasitic Diseases Chinese Center for Disease Control and PreventionChinese Center for Tropical Diseases ResearchWHO Collaborating Center for Tropical DiseasesNational Centre for International Research on Tropical DiseasesMinistry of Science and TechnologyKey Laboratory of Parasite and Vector BiologyMinistry of HealthShanghai200025China Yunnan Institute of Parasitic Diseases Puer665000China Department of Public Health Ministry of Health and SportsNay Pyi Taw15011Myanmar Health Poverty Action East Asia Programme Office Kunming650000China

Background: Malaria cases have declined significantly along the China-Myanmar border in the past 10 years and this region is going through a process from control to elimination.The aim of this study is to investigate the epidemiology of malaria along the border,will identify challenges in the progress from control to elimination.Methods:: National reported malaria cases from China and Myanmar,along with the data of 18 Chinese border counties and 23 townships in Myanmar were obtained from a web-based diseases information reporting system in China and the national malaria control program of Myanmar,respectively.Epidemiological data was analyzed,including the number of reported cases,annual parasite index and proportion of vivax infection.Spatial mapping of the annual parasite index(API)at county or township level in 2014 and 2018 was performed by ArcGIS.The relationship of malaria endemicity on both sides of the border was evaluated by regression analysis.Results: The number of reported malaria cases and API declined in the border counties or townships.In 2014,392 malaria cases were reported from 18 Chinese border counties,including 8.4%indigenous cases and 91.6%imported cases,while the highest API(0.11)was occurred in Yingjiang County.There have been no indigenous cases reported since 2017,but 164 imported cases were reported in 2018 and 97.6%were imported from Myanmar.The average API in 2014 in 23 Myanmar townships was significantly greater than that of 18 Chinese counties(P10.Plasmodium vivax was the predominant species along the border.The number of reported malaria cases and the proportion of vivax infection in the 18 Chinese counties were strongly correlated with those of the 23 Myanmar townships(P<0.05).Conclusions: Malaria elimination is approaching along the China-Myanmar border.H

关键词： Malaria Control Elimination China–Myanmar border

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Challenges in early phase of implementing the 1-3-7 surveillance and response approach in malaria elimination setting:A field study from Myanmar

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Infectious Diseases of Poverty 2020年第1期9卷 100-100页

作者： Poe Poe aung Zaw Win Thein Zar Ni Min Hein Kyaw Thet aung Nwe Oo Mon Nay Yi Yi Linn aung thi Khin Thet Wai Thae Maung Maung Duke Global Health Institute Myanmar Program YangonMyanmar 不详

Background:The National Plan for Malaria Elimination(NPME)in Myanmar(2016–2030)aims to eliminate indigenous Plasmodium falciparum malaria in six states/regions of low endemicity by 2020 and countrywide by 2030.To achieve this goal,in 2016 the National Malaria Control Program(NMCP)implemented the“1-3-7”surveillance and response strategy.this study aims to identify the barriers to successful implementation of the NPME which emerged during the early phase of the“1-3-7”approach deployment.Methods:A mixed-methods study was conducted with basic health staff(BHS)and Vector Born Disease Control Program(VBDC)staff between 2017 and 2018 in six townships of six states/regions targeted for sub-national elimination by 2020.A self-administered questionnaire,designed to assess the knowledge required to implement the“1-3-7”approach,was completed by 544 respondents.Bivariate analysis was performed for quantitative findings and thematic analysis was conducted for qualitative findings using Atals.ti software.Results:Although 83%of participants reported performing the key activities in the“1-3-7”surveillance and response approach,less than half could report performing those activities within 3 days and 7 days(40 and 43%,respectively).Low proportion of BHS correctly identified six categories of malaria cases and three types of foci(22 and 26%,respectively).In contrast,nearly 80%of respondents correctly named three types of case detection methods.Most cited challenges included‘low community knowledge on health’(43%),‘inadequate supplies’(22%),and‘transportation difficulty’(21%).Qualitative data identified poor knowledge of key surveillance activities,delays in reporting,and differences in reporting systems as the primary challenges.The dominant perceived barrier to success was inability to control the influx of migrant workers into target jurisdictions especially in hard-to-reach areas.Interviews with township medical officers and the NMCP team leaders further highlighted the necessity of refresher training for every step in the“1-3-7

关键词： Malaria elimination 1-3-7 approach Surveillance and response Basic health staff Mixed methods Myanmar

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Effects of torrefied wood chip and vermicompost application on vegetation growth and nutrient uptake in the Saemangeum reclaimed land

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Ecological Processes 2020年第1期9卷 74-82页

作者： aung aung Jeong Min Seo Si Ho Han Ji Young An Huong thi Thuy Dao Woo Bin Youn Byung Bae Park Department of Environment and Forest Resources College of Agriculture and Life SciencesChungnam National University99 Daehak-roYuseong-guDaejeon 34134Republic of Korea Environmental Conservation Department Ministry of Natural Resources and Environmental ConservationNaypyitaw 15011Myanmar Institute of Agricultural Science College of Agriculture and Life SciencesChungnam National University99 Daehak-roYuseong-guDaejeon 34134Republic of Korea.

Background:In reclaimed land,the growth environment for plants may be unfavorable and the initial establishment and growth of seedlings could be limited because of low nutrient and water availability.Fertilization and control of understory vegetation that competes with seedlings may be of help in ameliorating soil physical and chemical properties,resulting in better seedling growth and reclamation success.However,the amount of nutrients understory vegetation absorbs in this ecological process has been rarely studied.Thus,we aimed to investigate the effect of soil amendment on biomass production and nutrient uptake by weeds in the nutrient-poor reclaimed area.We applied three levels of torrefied wood chip(TWC;0,2.5,and 5 Mg ha^(−1))and two levels of vermicompost(VC;0 and 2.7 Mg ha^(−1))as soil physical improvements and organic soil amendments in reclaimed land in the Republic of Korea,with Populus euramericana used as the crop tree.Results:TWC did not influence weed biomass,but 2.7 Mg ha^(−1) VC significantly increased weed biomass by 21%compared to 0 Mg ha^(−1) VC treatments.Nitrogen(N),phosphorus(P),potassium(K),calcium(Ca),magnesium(Mg),and sodium(Na)concentrations in weeds were the highest in control,but there was no statistical difference among treatments.However,VC treatment did marginally increase nutrient uptake in weeds,especially P,K,Ca,and Na.No treatments influenced crop tree height.Conclusion:We conclude that VC can be used as an organic source of nutrients in reclaimed soil and that weed management is necessary to increase treatment effects on crop trees in this salt-affected reclaimed land.

关键词： Nutrient content Populus euramericana Saemangeum Soil amendment Weed biomass

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Active case-finding for tuberculosis by mobile teams in Myanmar:yield and treatment outcomes

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Infectious Diseases of Poverty 2017年第1期6卷 683-690页

作者： Ohnmar Myint Saw Saw Petros Isaakidis Mohammed Khogali Anthony Reid Nguyen Binh Hoa thi thi Kyaw Ko Ko Zaw Tin Mi Mi Khaing Si Thu aung National Tuberculosis Programme Corner of Mingyi Road and Minglar StreetPathein townshipAyeyarwaddy RegionMyanmar Department of Medical Research YangonMyanmar Medecins sans Frontieres Operational Research UnitLuxembourgLuxembourg National Tuberculosis Programme HanoiVietnam Centre for Operational Research International Union Against Tuberculosis and Lung DiseaseParisFrance TB Unit WHO Country Office for MyanmarYangonMyanmar

Background:Since 2005,the Myanmar National Tuberculosis Programme(NTP)has been implementing active case finding(ACF)activities involving mobile teams in hard-to-reach areas.this study revealed the contribution of mobile team activities to total tuberculosis(TB)case detection,characteristics of TB patients detected by mobile teams and their treatment outcomes.Methods:this was a descriptive study using routine programme data between October 2014 and December 2014.Mobile team activities were a one-stop service and included portable digital chest radiography(CXR)and microscopy of two sputum samples.The algorithm of the case detection included screening patients by symptoms,then by CXR followed by sputum microscopy for confirmation.Diagnosed patients were started on treatment and followed until a final outcome was ascertained.Results:A total of 9349 people with symptoms suggestive of TB were screened by CXR,with an uptake of 96.6%.Of those who were meant to undergo sputum smear microscopy,51.4%had sputum examinations.Finally,504 TB patients were identified by the mobile teams and the overall contribution to total TB case detection in the respective townships was 25.3%.Among total cases examined by microscopy,6.4%were sputum smear positive TB.Treatment success rate was high as 91.8%in study townships compared to national rate 85%(2014 cohort).Conclusions:this study confirmed the feasibility and acceptability of ACF by mobile teams in hard-to-reach contexts,especially when equipped with portable,digital CXR machines that provided immediate results.However,the follow-up process of sputum examination created a significant barrier to confirmation of the diagnosis.In order to optimize the ACF through mobile team activity,future ACF activities were needed to be strengthened one stop service including molecular diagnostics or provision of sputum cups to all presumptive TB cases prior to CXR and testing if CXR suggestive of TB.

关键词： Mobile team Active case finding Chest X-ray Treatment outcomes

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Comparison of litterfall production in three forest types in Jeju Island, South Korea

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Journal of Forestry Research 2020年第3期31卷 945-952页

作者： Ji Young An Si Ho Han Woo Bin Youn Sang Ick Lee Afroja Rahman Huong thi Thuy Dao Jeong Min Seo aung aung Hyung-Soon Choi Hwa Ja Hyun Byung Bae Park Department of Natural Resources Kyoto UniversityKyoto 606-8502Japan Department of Environment and Forest Resources Chungnam National UniversityDaejeon 34134Republic of Korea Forest Environment Conservation Division Korea Forest ServiceDaejeon 35208Republic of Korea Forest Conservation Department National Institute of Forest ScienceSeoul 02455Republic of Korea Warm Temperate and Subtropical Forest Research Center National Institute of Forest ScienceSeogwipo 63582Republic of Korea

Litterfall, which is influenced by physical and biological factors, is a major pathway for carbon and nutrient cycling in forest ecosystems. The purpose of this study was to investigate monthly litterfall production in three forests in Jeju Island differentiated by forest composition and precipitation: Cheongsu(Quercus glauca as the dominant species;low precipitation), Seonheulb(Q. glauca as the dominant species;high precipitation), and Seonheulm(Q. glauca and Pinus thunbergii as the dominant species;high precipitation). Litterfall was collected monthly from April to December 2015 and divided into leaf litter, twig, bark, seeds, and unidentified materials.Seasonal patterns of litterfall production varied across stands according to their species composition. However,the amount of leaf litterfall and total litterfall were comparable among stands, ranging from 362 to 375 g m-2 for leaf litter and 524 g m-2 to 580 g m-2 for total litterfall.Oak leaf litter in May was the highest in all stands, while needle litter was the highest in December in Seonheulm.High twig litterfall in July may be attributable to high rainfall with strong winds and storms during the rainy season. Although forest type and climate factor had no influence on litterfall amounts in this study, the pattern of litterfall production was species dependent, suggesting diverse effects on carbon and nutrient cycling in these forests.

关键词： Coniferous forest Evergreen broadleaved forest Gotjawal Leaf litter Precipitation Temperature

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