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Genetic polymorphism in Leishmania infantum isolates from human and animals determined by nagt PCR-RFLP

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Infectious diseases of Poverty 2018年第1期7卷 523-530页

作者： Adil El Hamouchi Sofia El Kacem Rajaa Ejghal Meryem Lemrani laboratory of Parasitology and vector-borne-diseases Institut Pasteur du MarocCasablancaMorocco

Background:Leishmania infantum is the causative agent of human visceral leishmaniasis(VL)and sporadic human cutaneous leishmaniasis(CL)in the Mediterranean *** genetic variation of the Leishmania parasites may result in different phenotypes that can be associated with the geographical distribution and diversity of the clinical *** main objective of this study was to explore the genetic polymorphism in *** isolates from human and animal hosts in different regions of ***:The intraspecific genetic variability of 40 Moroccan *** MON-1 strains isolated from patients with VL(n=31)and CL(n=2)and from dogs(n=7)was evaluated by PCR-RFLP of nagt,a single-copy gene encoding N-acetylglucosamine-1-phosphate *** a more complete analysis of *** polymorphism,we included the restriction patterns of nagt from 17 strains available in the literature and patterns determined by in-silico digestion of three sequences from the GenBank ***:Moroccan *** strains presented a certain level of genetic diversity and six distinct nagt-RFLP genotypes were *** of the six genotypes were exclusively identified in the Moroccan population of ***:variant M1(15%),variant M2(7.5%),and variant M3(2.5%).The most common genotype(65%),variant 2(2.5%),and variant 4(7.5%),were previously described in several countries with endemic *** analysis segregated our *** population into two distinct clusters,whereas variant M2 was clearly distinguished from both cluster I and cluster *** distribution highlights the degree of genetic variability among the Moroccan *** ***:The nagt PCR-RFLP method presented here showed an important genetic heterogeneity among Moroccan *** strains isolated from human and canine reservoirs with 6 genotypes *** of the six Moroccan nagt genotypes,have not been previously described and support the particular gen

关键词： Leishmania infantum Genetic variability N-acetylglucosamine-1-phosphate transferase PCR-RFLP Morocco

Surveillance Progress for Crucial vector-borne Parasitic diseases in China

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China CDC weekly 2020年第33期2卷 638-642页

作者： Fan Yang Zhengbin Zhou Yuan Fang Xinyu Feng Qin Chen Pin Yang Jing Xu Shizhu Li National Institute of Parasitic diseases Chinese Center for Disease Control and Prevention/Chinese Center for Tropical Diseases Research/WHO Collaborating Centre for Tropical Diseases/National Center for International Research on Tropical DiseasesMinistry of Science and Technology/Key Laboratory of Parasite and Vector BiologyNational Health Commission of ChinaShanghaiChina

China has achieved significant progress in controlling parasitic diseases through extensive campaigns over the last seven *** 2015,the criteria for schistosomiasis transmission control were met nationwide(1),and no indigenous malaria cases have been reported in China since 2017(2).Moreover,the number of areas with endemic visceral leishmaniasis has been markedly reduced from 16 to 7 provincial-level administrative divisions(PLADs)(3).

关键词： markedly diseases schistosomiasis

How Thailand eliminated lymphatic filariasis as a public health problem

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Infectious diseases of Poverty 2019年第3期8卷 97-98页

作者： Sunsanee Rojanapanus Tanaporn Toothong Patcharida Boondej Suwich Thammapalo Naraporn Khuanyoung Weena Santabutr Preecha Prempree Deyer Gopinath Kapa D.Ramaiah Bureau of vector borne diseases Department of Disease ControlMinistry of Public HealthNonthaburiThailand 不详

Background:Lymphatic filariasis is endemic in nine of the eleven Member States of the World Health Organization South East Asia *** article describes the intensive interventions with the National Programme for Elimination of Lymphatic Filariasis in Thailand since its launch in 2001 till the validation of its elimination in ***:A baseline epidemiological survey was initiated in 2001 to identify both brugian and bancroftian filarial areas and delineate its *** drug administration(MDA)with diethylcarbamazine citrate(DEC)and albendazole(ALB)was implemented in a total of 357 implementation units(IUs)in 11 lymphatic filariasis(LF)endemic *** implementing unit(IU)was a ***-MDA surveys were conducted in 2006 in the 11 LF endemic provinces among population over 6 years of age and children of≤6 years using immunochromatographic test(ICT)for Wuchererio bancrofti antigen and microfilariae(mf)detection for Brugia *** Narathiwat province,Stop-MDA surveys were done in 2011 using *** assessment surveys(TAS)were conducted in 2012-2013,2015 and 2016-2017 among school students in the 6-7-year *** of migrant populations through the national migrant health checkup were intensified in seven provinces over 2002-2017 for LF antigenaemia using ICT test *** four B.m oloyi endemic provinces,annual surveys to detect LF reservoir in domestic cats commenced in 1994.A 2001 survey of the chronic disease burden for LF established a register of the cumulative number of people with lymphedema/***:A total of five rounds of MDA annually were implemented over 2002-2006 in all *** annual rounds of MDA were required in 87 Ills of Narathiwat province from 2007 to 2011 due to persistent *** annual national drug coverage with MDA over 2002-2012 was in the range of 68.0 to 95.4%.Stop-MDA surveys in 2006 in the 11 LF endemic provinces found nine mf positive cases in seven Ill

关键词： Lymphatic filariasis Elimination Validation Thailand

Reported vector-borne diseases --China, 2018

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China CDC weekly 2020年第14期2卷 219-224页

作者： Qiyong Liu Yuan Gao State Key laboratory of Infectious Disease Prevention and Control Collaborative Innovation Center for Diagnosis and Treatment of Infectious DiseasesNational Institute for Communicable Disease Control and PreventionChinese Center for Disease Control and PreventionWorld Health Organization Collaborating Center for Vector Surveillance and ManagementBeijingChina

Introduction:vector-borne diseases are an important type of infectious disease in *** study aims to present a summary of vector-borne diseases reported in China in 2018 to provide information on their control and ***:A descriptive analysis was utilized to explore the epidemiological ***:A total of 51,599 cases with vector-borne diseases were reported in 2018 with an incidence rate of 3.69/100,*** typhus,hemorrhagic fever with renal syndrome(HFRS),and dengue contributed to 85.08%of all the cases.A total of 377 fatalities were included with a case fatality rate of 0.73%.Japanese encephalitis(JE),severe fever with thrombocytopenia syndrome(SFTS),and HFRS accounted for 95.76%of all *** vector-borne diseases show disparities in gender,age groups,seasons,and *** and Implications for Public Health Practice:In 2018,vector-borne diseases caused substantial morbidity and mortality in China's Mainland with heterogeneity in populations affected and *** regions should adopt targeted strategies and measures according to vulnerable populations and diseases.

关键词： diseases mortality utilized

Complex interactions among insect viruses-insect vector-arboviruses

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Insect Science 2024年第3期31卷 683-693页

作者： Hui Wang Qian Chen Taiyun Wei State Key laboratory of Ecological Pest Control for Fujian and Taiwan Crops Vector-borne Virus Research CenterFujian Agriculture and ForestryUniversityFuzhouChina

Insects are the host or vector of diverse viruses including those that infect vertebrates,plants,and *** viruses reside inside their insect hosts and are vertically transmitted from parent to *** insect virus-host relationship is intricate,as these viruses can impact various aspects of insect biology,such as development,reproduction,sex ratios,and ***-borne viruses(arboviruses)that cause substantial global health or agricultural problems can also be vertically transmitted to insect vector *** infections with insect viruses and arboviruses are common in *** coinfections involve complex interactions,including synergism,dependence,and *** studies have shed light on the influence of insect viruses on the competence of insect vectors for *** this review,we focus on the biological effects of insect viruses on the transmission of arboviruses by *** also discuss the potential mechanisms by which insect viruses affect the ability of hosts to transmit arboviruses,as well as potential strategies for disease control through manipulation of insect *** of the interactions among insect vectors,insect viruses and arboviruses will provide new opportunities for development of innovative strategies to control arbovirus transmission.

关键词： arbovirus insect biology insect vectors insect virus interaction transmission

A novel mosquito-borne reassortant orbivirus isolated from Xishuangbanna,China

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Virologica Sinica 2017年第2期32卷 159-162页

作者： Shaozhen Xing Xiaofang Guo Xianglilan Zhang Qiumin Zhao Lingli Li Shuqing Zuo Xiaoping An Guangqian Pei Qiang Sun Shi Cheng Yunfei Wang Hang Fan Zhiqiang Mi Yong Huang Zhiyi Zhang Hongning Zhou Jiusong Zhang Yigang Tong State Key laboratory of Pathogen and Biosecurity Beijing Institute of Microbiology and EpidemiologyBeijing 100071China Hebei Normal University College of ScienceShijiazhuang 050024China Yunnan Provincial Key laboratory of vector-borne diseases Control and Research Yunnan Institute of Parasitic DiseasesPuer 665000China

Dear Editor,The genus Orbivirus,within the family Reoviridae,includes 22 virus species(King et al.,2011).They are distributed globally,but are particularly prevalent in Europe,Asia,and *** addition,they can be transmi... 详细信息

关键词： A novel mosquito-borne reassortant orbivirus isolated from Xishuangbanna China

Insecticide resistance in Indian Anopheles: A stumbling block for malaria elimination

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Asian Pacific Journal of Tropical Medicine 2020年第10期13卷 429-430页

作者： Nikhat Khan Ashok Kumar Mishra Aparup Das Division of vector borne diseases ICMR-National Institute of Research in Tribal HealthNIRTH CampusGarhaJabalpurMadhya Pradesh482003India

Malaria is a mosquito-borne disease caused by protozoan parasites of Plasmodium genus,inflicting health of human living in tropical and subtropical regions of the globe since time immemorial.

关键词： Malaria Plasmodium Indian

Cutaneous anthrax associated with facial palsy:A case report

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Asian Pacific Journal of Tropical Medicine 2023年第8期16卷 379-382页

作者： Majid Ghafouri Seyed Mehran Mojtabaei Azar Shokri vector-borne diseases Research Center North Khorasan University of Medical SciencesBojnurdIran Student Research Committee Bojnurd University of Medical SciencesBojnurddIran

Rationale:Anthrax is a zoonotic disease caused by spores of Gram-positive Bacillus anthracis,commonly affects mammals and in rare cases *** infection occurs accidentally through direct or indirect exposure to animal or their *** concerns:A 63-year-old man was referred to our hospital with flu-like symptoms and severe swelling and redness on the face,the roof of the mouth,and *** had a history of direct contact with a slaughtered mutton two days *** declared controlled diabetes,hypertension,hypertriglyceridemia,and heart *** were normal in lung high resolution CT,but multiple lymphadenopathies were seen in the *** axillary lymphadenopathy with a maximum sad of 23 mm and pleural effusion on the right side was *** scan of the nose and sinuses showed an increased density of polyps in the left maxillary *** were prepared from the patient's lesions and examined under a light *** shape with Streptococcus bacteria was ***:Anthrax co-infection with herpes systemic virus and Streptococcus ***:Multidrug therapy started with appropriate ***:The symptoms of the patient gradually *** patient was discharged without any ***:Cutaneous anthrax in endemic areas in patients with skin presentations and a history of contact with infected animals or products should be considered a differential *** is more important in mixed infections where the main cause of the problem may be hidden.

关键词： Case report Anthrax Cutaneous North East Iran

Leafhopper salivary carboxylesterase suppresses JA-Ile synthesis to facilitate initial arbovirus transmission in rice phloem

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Plant Communications 2024年第9期5卷 116-135页

作者： Yunhua Chi Hongxiang Zhang Siyu Chen Yu Cheng Xiaofeng Zhang Dongsheng Jia Qian Chen Hongyan Chen Taiyun Wei vector-borne Virus Research Center Fujian Province Key Laboratory of Plant VirologyInstitute of Plant VirologyFujian Agriculture and Forestry UniversityFuzhouFujian 350002China

Plant jasmonoyl-L-isoleucine(JA-Ile)is a major defense signal against insect feeding,but whether or how insect salivary effectors suppress JA-Ile synthesis and thus facilitate viral transmission in the plant phloem remains *** carboxylesterases(CarEs)are the third major family of detoxification ***,we identify a new leafhopper CarE,CarE10,that is specifically expressed in salivary glands and is secreted into the rice phloem as a saliva *** CarE10 directly binds to rice jasmonate resistant 1(JAR1)and promotes its degradation by the proteasome ***,the direct association of CarE10 with JAR1 clearly impairs JAR1 enzyme activity for conversion of JA to JA-Ile in an in vitro JAIle synthesis system.A devastating rice reovirus activates and promotes the co-secretion of virions and CarE10 via virus-induced vesicles into the saliva-storing salivary cavities of the leafhopper vector and ultimately into the rice phloem to establish initial ***,a virus-mediated increase in CarE10 secretion or overexpression of CarE10 in transgenic rice plants causes reduced levels of JAR1 and thus suppresses JA-Ile synthesis,promoting host attractiveness to insect vectors and facilitating initial viral *** findings provide insight into how the insect salivary protein CarE10 suppresses host JA-Ile synthesis to promote initial virus transmission in the rice phloem.

关键词： leafhopper salivary protein CarE10 JAR1 degradation JA-Ile synthesis rice phloem initial viral transmission