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Co-infections with Babesia microti and Plasmodium parasites along the china-myanmar border

Infectious Diseases of Poverty 2013年第1期2卷 188-194页

作者： Xia Zhou Sheng-Guo Li Shen-Bo Chen Jia-Zhi Wang Bin Xu He-Jun Zhou Hong-Xiang Zhu Ge Jun-Hu Chen Wei Hu National Institute of Parasitic Diseases Chinese Center for Disease Control and PreventionWHO Collaborating Centre for MalariaSchistosomiasis and FilariasisKey Laboratory of Parasite&Vector Biology Ministry of HealthShanghai 200025China Department of Parasitology Medical College of Soochow UniversityNo.199 Renai RoadSuzhou 215123China Tengchong Center for Disease Control and prevention Yunnan province 679100China Department of Microbiology and Microbial Engineering School of Life ScienceFudan UniversityShanghai 200433China

Background:Babesiosis is an emerging health risk in several parts of the ***,little is known about the prevalence of Babesia in malaria-endemic *** area along the china-myanmar border in Yunnan is a main endemic area of malaria in ***,however,human infection with Babesia microti(***)is not recognized in this region,and its profile of co-infection is not yet ***:To understand its profile of co-infections with ***,our investigation was undertaken in the malaria-endemic area along the china-myanmar border in Yunnan between April 2012 and June *** parasite species,including ***,Plasmodium falciparum(***),***,and ***,were identified among 449 suspected febrile persons detected by nested polymerase chain reaction(PCR)assay based on small subunit ribosomal ribonucleic acid(RNA)genes of *** and Plasmodium ***:Of all the collected samples from febrile patients,mono-infection with ***,***,***,and *** accounted for 1.8%(8/449),9.8%(44/449),2.9%(13/449),and 0.2%(1/449),*** rate of mixed infections of *** with *** or *** are both 0.2%(1/449),and mixed infections of *** and *** accounted for 1.1%(5/449).Conclusions:This report supports the hypothesis that babesiosis caused by *** is emerging along the china-myanmar border in the Yunnan province,***,but it was ignored because of low parasitemia or mixed infection with Plasmodium *** sensitive and specific diagnosis methods are needed to find the rapid response mechanism of emergency for babesiosis and malaria co-prevalence areas.

关键词： Babesia Plasmodium Co-infection china-myanmar border

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Malaria control along china-myanmar border during 2007–2013: an integrated impact evaluation

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Infectious Diseases of Poverty 2016年第1期5卷 680-690页

作者： Jian-Wei Xu Yong Li Heng-Lin Yang Jun Zhang Zai-Xing Zhang Ya-Ming Yang Hong-Ning Zhou Joshua Havumaki Hua-Xian Li Hui Liu Hua Zhou Xin-Yu Xie Jia-Xiang Dong Yue Zhang Xiao-Ying Sun Bo Li Jia-Yin Li Yang-Hui Tian Pi-Yu Wang Ben-Fu Li Yunnan Institute of Parasitic Diseases Yunnan Provincial Center of Malaria ResearchYunnan Provincial Collaborative Innovation Center for Public Health and Disease Prevention and ControlYunnan Provincial Key Laboratory of Vector-borne Diseases Control and ResearchPuer 665000China Yunnan Provincial Health and Family Planning Commission Kunming 650200People’s Republic of China Yunnan Office of Health Poverty Action Kunming 650041People’s Republic of China World Health Organization Regional Office for the Western Pacific P.O.Box 29321000 ManilaPhilippines Foundation for Innovative New Diagnostics 1216 CointrinGenevaSwitzerland

Background:Implementing effective interventions remain a lot of difficulties along all border *** emergence of artemisinin resistance of Plasmodium falciparum strains in the Greater Mekong Subregion is a matter of great *** has effectively controlled cross-border transmission of malaria and artemisinin resistance of *** along the china-myanmar ***:A combined quantitative and qualitative study was used to collect data,and then an integrated impact evaluation was conducted to malaria control along the china-myanmar border during ***:The parasite prevalence rate(PPR)in the five special regions of myanmar was decreased from 13.6%in March 2008 to 1.5%in November *** with the baseline(PPR in March 2008),the risk ratio was only 0.11[95%confidence interval(CI),0.09-0.14]in November 2013,which is equal to an 89%reduction in the malaria *** parasite incidence(API)across 19 Chinese border counties was reduced from 19.6 per 10000 person-years in 2006 to 0.9 per 10000 person-years in *** with the baseline(API in 2006),the API rate ratio was only 0.05(95%CI,0.04-0.05)in 2013,which equates to a reduction of the malaria burden by 95.0%.Meanwhile,the health service system was strengthened and health inequity of marginalized populations reduced along the international ***:The effective collaboration between china,myanmar and the international non-governmental organization promptly carried out the core interventions through simplified *** integrated approaches dramatically decreased malaria burden of Chinese-myanmar border.

关键词： border malaria Control Artemisinin resistance china-myanmar border

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Polymorphisms of potential drug resistant molecular markers in Plasmodium vivax from china-myanmar border during 2008-2017

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Infectious Diseases of Poverty 2022年第2期11卷 93-94页

作者： Zhensheng Wang Chunyan Wei Yunchun Pan Zhihua Wang Xin Ji Qianqian Chen Lianhui Zhang Zenglei Wang Heng Wang Department of Microbiology and Parasitology Institute of Basic Medical Sciences Chinese Academy of Medical SciencesSchool of Basic Medicine Peking Union Medical College5#Dong Dan San TiaoBeijing 100005People’s Republic of China NHC Key Laboratory of Systems Biology of Pathogens Institute of Pathogen BiologyChinese Academy of Medical Sciences and Peking Union Medical College9#Dong Dan San TiaoBeijingPeople’s Republic of China 不详

Background:Plasmodium vivax remains the predominant species at the china–myanmar border,imposing a major challenge to the recent gains in regional malaria *** closely supervise the emerging of drug resistance in this area,we surveyed the variations in genes potentially correlated with drug resistance in *** parasite and the possible drug selection with ***:A total of 235 *** samples were collected from patients sufering uncomplicated malaria at Yingjiang,Tengchong,and Longling counties,and Nabang port in china,Yunnan province,and Laiza sub-township in myanmar,from 2008 to *** potential drug resistance genes were amplifed utilizing nested-PCR and analyzed,including pvdhfr,pvdhps,pvmdr1,pvcrt-o,and *** Pearson’s Chi-squared test or Fisher’s exact test were applied to determine the statistical frequency diferences of mutations between categorical ***:The pvdhfr F57I/L,S58R,T61M and S117T/N presented in 40.6%,56.7%,40.1%,and 56.0% of the sequenced *** isolates,and these mutations signifcantly decreased with *** haplotype formed by these quadruple mutations predominated in Yingjiang,Tengchong,Longling and *** a mutation H99S/R(56.6%)dominated in Laiza and increased with *** pvdhps,the A383G prevailed in 69.2% of the samples,which remained the most prevalent ***,a signifcant decrease of its occurrence was also noticed over the *** S382A/C and A553G existed in 8.4% and 30.8% of the isolates,*** pvmdr1,the mutation Y976F occurred at a low frequency in 5/232(2.2%),while T958M was fxed and F1076L was approaching fxed(72.4%).The K10 insertion was detected at an occurrence of 33.2% in pvcrt-o,whereas there was no signifcant diference among the sites or over the *** mutation was identifed in ***:Mutations related with resistance to antifolate drugs are prevalent in this area,while their frequencies decrease signifcantly with time,suggestive of increased suscep

关键词： Plasmodium vivax Antimalarial drug Drug resistance Molecular marker china-myanmar border

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