Zhongguo ji sheng chong xue yu ji sheng chong bing za zhi = Chinese journal of parasitology & parasitic diseases最新文献

{"title":"[Analysis on Malaria Situation in Shaanxi Province during 2005-2014].","authors":"Ti-cao Zhou,&nbsp;Yi Zhang,&nbsp;Zhi-cheng Zhang,&nbsp;Yong Deng,&nbsp;Zi-chao Chai,&nbsp;Lei Cao,&nbsp;Sa Chen,&nbsp;Jun-ling Sun,&nbsp;Guo-qing Shi,&nbsp;Feng Liu,&nbsp;Zhong-jie Li","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To analyze the malaria situation in Shaanxi Province during 2005-2014, in the aim of providing reference for improving malaria elimination strategies and measures.</p><p><strong>Methods: </strong>Data on malaria control and malaria epidemic reports during 2005-2014 were collected, and analysis was made on prevalence and regional distribution of malaria, species of plasmodium, diagnosis of patients, and sources of imported malaria.</p><p><strong>Results: </strong>Four hundred and fifty three cases of malaria were reported in Shaanxi Province during 2005-2014, consisting of 73 local cases （16.1%） and 380 imported cases （83.9%） of which 141 were falciparum malaria （37.1%, 141/380）. Three patients died and they all were imported cases of falciparum malaria. No indigenous infection had been reported since 2011. Most of the cases were laboratory-confirmed（71.5%, 324/453）. The falciparum malaria cases accounted for 31.1%（141/453） of all the cases, and they all were imported cases. No cases of quartan malaria and ovale malaria were reported. The 73 indigenous cases distributed in 25 districts (counties) of 7 cities, including 3 cities in South Shaanxi (Shangluo, Hanzhong, Ankang)（61.6%, 45/73） and four cities in Central Shaanxi (Xi′an, Weinan, Xianyang, Baoji) (38.4%, 28/73）. The imported cases showed an increasing trend from 24 in 2005 to 59 in 2014. The 380 imported cases were mainly from over 20 countries in Africa （72.6%, 276/380）, with top sources of Angola （64 cases）, Cameroon （26）, Ghana （24）, and Equatorial Guinea （23） accounting for 36.0% （ 137/380）. The median of interval from onset to diagnosis was 5 d. The cases were mainly reported by clinical medical institutions （87.6%, 397/453）, only 7.5% （34/453） were reported by disease control institutions.</p><p><strong>Conclusion: </strong>No indigenous cases have been reported since 2011, but the imported malaria cases show a trend of increase with a major source of Africa.</p>","PeriodicalId":23981,"journal":{"name":"Zhongguo ji sheng chong xue yu ji sheng chong bing za zhi = Chinese journal of parasitology & parasitic diseases","volume":"34 5","pages":"439-43"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36416526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[An Investigation on a Case of Family-clustered Paragonimiasis in Wenzhou City].","authors":"Qing-xiang Ni,&nbsp;Xiao-yao Lin,&nbsp;Li-nong Yao,&nbsp;Wei Ruan,&nbsp;Chang-xian Bao,&nbsp;Yi Chen,&nbsp;Qiong-jiao Pan","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Paragonimus infection was reported in a family of 8 members after consuming wine-preserved raw crabs. Seven members developed symptoms of fever, cough, sputum, fatigueness, chest pain, and abdominal pain during 2-3 months after crab feeding, while one member was normal. Serum samples were collected from the 7 members for anti-paragonimus antibody test, with 5 members showing positive, 1 weakly positive and 1 negative. In view of the epidemiological history, clinical symptoms, imaging and laboratory test results, this case was diagnosed to be a family-clustered paragonimus infection.</p>","PeriodicalId":23981,"journal":{"name":"Zhongguo ji sheng chong xue yu ji sheng chong bing za zhi = Chinese journal of parasitology & parasitic diseases","volume":"34 5","pages":"448-50"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36416529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Human Demodicosis: Emerging Dermatosis Caused by Demodex].","authors":"Ya-e Zhao","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Demodex mites were discovered 175 years ago. However, the pathogenicity of Demodex remains questioned by clinicians due to the high infection yet low incidence of demodicosis and incomplete correlation between mite loads and clinical symptoms. In the recent decades, the pathogenicity of Demodex has attracted public concern as there are continuous case reports of skin lesions caused by mite infection. The pathogenicity of Demodex remains poorly understood. Demodex infection is suspected to be assocaited with rosacea, but its relation with other types of facial lesions such as papule and pustule is usually misdiagnosed or missed in clinical practice. This review gives an overview on the discovery, typical cases, pathogenesis, and clinical diagnosis and treatment of demodicosis, in the aim of promoting social recognition and attention on demodicosis.</p>","PeriodicalId":23981,"journal":{"name":"Zhongguo ji sheng chong xue yu ji sheng chong bing za zhi = Chinese journal of parasitology & parasitic diseases","volume":"34 5","pages":"456-62"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36416530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Research Advances on Gliding-associated Proteins of Toxoplasma gondii].","authors":"Run-hua Li,&nbsp;Guo-rong Yin","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The ability to invade host cells is a key to the survival and pathogenicity of Apicomplexan parasites. Toxoplasma gondii is an obligatory intracellular parasite. Its motility, invasion into, and egression from host cells are powered by a machinery called acto-myosin motor （AMM）. The AMM is composed of myosin A, a myosin light chain （MLC1）, two essential light chains （ELC）1, 2 and gliding-associated protein （GAP）. The GAP family has been discovered to include GAP45, GAP50, GAP80, GAP70 and GAP40, which are the major components of glideosome that provides power for parasite motility. The glideosome of apicomplexan parasites is an actin- and myosin-based power machine located at the pellicle between the plasma membrane （PM） and inner membrane complex (IMC). This review outlines our current understanding of GAP function and architecture as well as the molecular basis for parasite motility. Meanwhile, the use of GAPs as the candidate toxoplasmosis vaccine is prospected.</p>","PeriodicalId":23981,"journal":{"name":"Zhongguo ji sheng chong xue yu ji sheng chong bing za zhi = Chinese journal of parasitology & parasitic diseases","volume":"34 5","pages":"463-7"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36416531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Data Integration and Information Sharing of Parasite Resources in Fujian Province].","authors":"Li-sha Li,&nbsp;Rong-yan Zhang,&nbsp;Bao-jian Chen,&nbsp;Chen-xin Lin,&nbsp;Yan-rong Li,&nbsp;Zhu-yun Chen,&nbsp;Yan-yan Fang,&nbsp;You-zhu Cheng,&nbsp;Jin-xiang Lin","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To establish parasite library and database in Fujian Province by integrating information on human-animal coinfecting parasites, vectors and　intermediates, in the aim of resource sharing.</p><p><strong>Methods: </strong>According to the Standards and Technical Regulation for Preservation of Parasitic Germplasm Resources set by the Resource Sharing Platform for Parasitic and Tropical Diseases(referred to as Germplasm Resource Sharing Platform), the preserved and newly discovered parasitic germplasm resources in Fujian Center for Disease Control and Prevention were categorized, information described, preserved and displayed, and the information sharing was made through the Germplasm Resource Sharing Platform.</p><p><strong>Results: </strong>The library and database on parasites, medical vectors, and hosts were established. The library was comprised of 1 020 parasite specimens, vectors and hosts, including 100 （9.8%） adult worm specimens, 120（11.7%） eggs and larvae, and 800（78.4%） vectors and hosts. Information digitalization was achieved for 61 resources, including 9 species of nematodes, 16 species of trematodes, 7 species of tapeworms, 16 different medical mollusks, and 13 different medical arthropods, resulting in 3 150 pieces of information and 6 300 images. The database was integrated into the Germplasm Resource Sharing Platform for resource sharing.</p><p><strong>Conclusion: </strong>The library and database on parasite gemplasm resources in Fujian Province has been established. Information sharing is made available through the Germplasm Resource Sharing Platform.</p>","PeriodicalId":23981,"journal":{"name":"Zhongguo ji sheng chong xue yu ji sheng chong bing za zhi = Chinese journal of parasitology & parasitic diseases","volume":"34 5","pages":"451-5"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36416528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Evaluation on Malaria Hotspots in Yingjiang County of the China-Myanmar Border Area in 2015].","authors":"Cang-lin Zhang,&nbsp;Xiang-rui Guo,&nbsp;Rui Yang,&nbsp;Ya-ming Yang,&nbsp;Zhong-hua Yang,&nbsp;Yu-ting Zheng,&nbsp;Chao Wu,&nbsp;Shi-gang Li,&nbsp;Ying-xue Lin,&nbsp;Guo-cui Yu,&nbsp;Run-xian Yan,&nbsp;Kai-xia Duan,&nbsp;Zi-you Zhou,&nbsp;Peng Tian,&nbsp;Yao-wu Zhou,&nbsp;Hong-ning Zhou","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To understand the control status of malaria at hotspots in Yingjiang County and provide measures for malaria elimination in the China-Myanmar border areas of Yunnan Province.</p><p><strong>Methods: </strong>A survey was made in 4 villages with indigenous malaria cases or imported cases in Nabang and Tongbiguan of Yingjiang County in Yunnan Province in June and July 2015. Peripheral blood samples were collected from the neighboring residents around patients and examined by malaria rapid diagnostic test （RDT）. The results were further verified by nested-PCR. Mosquitoes were collected by overnight trapping with light traps in Jingpo, Lilisu, Jiema, and Mengxiangyang villages or by human landing catches in Jingpo and Lisu villages. Nested-PCR was performed on part of the captured Anopheles minimus to detect the malaria parasites.</p><p><strong>Results: </strong>One hundred and ninety-four filter blood samples were collected from 11 malaria cases in two sites. All were detected to be negative for Plasmodium by RDT. In contrast, two samples originated from Jingpo and Lisu villages with indigenous cases were detected to be positive for Plasmodium vivax by nested-PCR. A total of 2 374 mosquitoes were captured, belonging to 22 species of 4 genera: Anopheles, Culex, Aedes and Armigeres. The mosquitoes were predominated by genus Culex, followed by genus Anopheles（11.33%, 269/2 374） which was dominated by A. minimus（49.07%, 132/269）, then was A. sinensis（4.09%, 11/269）, A. maculatus（2.23%, 6/269）, A. jeyporiensis（0.74%, 2/269）and so on. The mean indoor man-biting rate of mosquitoes was 5.78 and 3.20 per person per hour for Jingpo and Lisu villages, and the mean outdoor man-biting rate of mosquitoes was 2.30 per person per hour for Lisu Village. The 14 A. minimus were negative for sporozoite infection as detected by nested-PCR.</p><p><strong>Conclusion: </strong>Nested-PCR showed that there are asymptomatic Plasmodium carriers in Yingjiang’s border area of Yunnan Province. Four major mosquito species as malaria vectors exist with A. minimus as the dominant one.</p>","PeriodicalId":23981,"journal":{"name":"Zhongguo ji sheng chong xue yu ji sheng chong bing za zhi = Chinese journal of parasitology & parasitic diseases","volume":"34 5","pages":"430-4"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36412503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Research Progress on Risk Assessment of Secondary Transmission of Imported Malaria].","authors":"Lei Lei,&nbsp;Mamatjan Umar,&nbsp;Zhi-hong Li,&nbsp;Zhi-gui Xia,&nbsp;Shang Xia,&nbsp;Yan-feng Gong,&nbsp;Ning Xiao","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In 2015, WHO issued the Global Technical Strategy for Malaria 2016-2030, which sets the target of reducing global malaria incidence and mortality rates by at least 90% by 2030. Although many countries have successfully achieved malaria elimination, they are facing the risk of imported malaria. In China, despite the acceleration of malaria elimination, imported malaria has become a potential threat to achieving complete malaria elimination. This paper reviews the worldwide research progress on risk assessment of secondary transmission of imported malaria, in the aim of providing reference for risk assessment of imported malaria and preventing secondary transmission in China.</p>","PeriodicalId":23981,"journal":{"name":"Zhongguo ji sheng chong xue yu ji sheng chong bing za zhi = Chinese journal of parasitology & parasitic diseases","volume":"34 5","pages":"468-72"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36416535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Epidemiological Studies on Echinococcosis in Kizilsu Kirgiz Autonomous Prefecture of Xinjiang].","authors":"Xiao-ying Chen,&nbsp;Yusupjan Setiwaldi,&nbsp;Yisilayin Osman","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To understand the prevalence and characteristics of echinococcosis in Kizilsu Kirgiz Autonomous Prefecture (abbreviated as Kizilsu) of Xinjiang, in the aim of providing evidence for prevention and treatment of echinococcosis.</p><p><strong>Methods: </strong>Sixty-two villages were selected as investigation spots from 19 towns in agricultural and pasturing areas of Ulugqat County, Artux City, Akto County, and Akqi County during 2011-2012. Ultrasound abdominal scan was performed in all residents in these spots to examine the occurance of echinococcosis. ELISA was performed to detect the echinococcosis-specific antibody in sera from children of 6-12 years and the antigen of Echinococcus granulosus in freshly-collected dog feces. Hydatid cysts in viscera of at slaughterhouses in the four spots were examined by touching and visual observation.</p><p><strong>Results: </strong>Ultrasound was conducted in 12 000 residents, among whom 60 were found to be positive for echinococcosis (echinococcosis granulosa), with a morbidity of 0.5%（60/12 000）. The morbidity in Ulugqat County was 1.1%（35/3 200）, significantly higher than that in Artux City（0.5%, 13/2 400）, Akto County（0.2%, 8/3 200）, and Akqi County（0.1%, 4/3 200）（χ2=4.92-24.79, P<0.05）. The morbidity was highest in residents ≥71 years（1.2%, 4/323）, followed by the age group of 0-10 years（0.9%, 3/350）, but with no significant difference among age groups（χ2=0.39-3.31, P＞0.05）. The serum antibody positive rate in children was 3.1%（230/7 338）, highest in Artux City（4.9%, 89/1 828） with significant difference in comparison to Akto County（2.9%, 56/1 927）, and Akqi County（0.7%, 11/1 639）（χ2=9.71, 54.34, P<0.05）. The hydatid cyst rate in livestock was 7.7%（291/3 769）, of which 97.3%（283/291） were in sheep. The antigen positive rate in dog feces was 3.3%（74/2 219）.</p><p><strong>Conclusion: </strong>The morbidity（1.1%） was highest in Ulugqat County and the antibody positive rate（4.9%） in children was highest in Artux City. Infection was found in livestock and dogs.</p>","PeriodicalId":23981,"journal":{"name":"Zhongguo ji sheng chong xue yu ji sheng chong bing za zhi = Chinese journal of parasitology & parasitic diseases","volume":"34 5","pages":"409-13"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36416268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Risk Assessment of Schistosomiasis Transmission by Catalytic Models Based on Antibody Positive Rates].","authors":"Qiang Wang,&nbsp;Ting Feng,&nbsp;Zhi-qiang Qin,&nbsp;Hong-qing Zhu,&nbsp;Li-juan Zhang,&nbsp;Jing Xu","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the transmission risk and features of schistosomiasis by analyzing the data concerning positive rates of anti-schistosome antibody using catalytic models.</p><p><strong>Methods: </strong>Cross-sectional survey was conducted in seven villages with different endemicity of schistosomiasis in Jiangxi (Caohui, Xinhua, Jingtou villages), Anhui (Yuye, Tieguai, Longshang villages) and Hubei (Hebei village) Provinces in 2008. Serum samples were collected and indirect hemagglutination assay was performed to detect anti-schistosome antibodies in serum. Antibody positive rate was calculated and differences among villages and age groups as well as between genders were analyzed. Data of antibody positive rate based on age strata for each village were analyzed by two-stage catalytic model and reversible and two-stage compound catalytic model. Parameters of each model were estimated through the maximum likelihood method. Seroconversion rate and sero-negative conversion rate were estimated in the two-stage catalytic model. Seroconversion rate, seroreversion rate and sero-negative conversion rate were estimated in reversible and two-stage compound catalytic model. The fitting effect was evaluated through correlation analysis and chi-square tests. The best fitted models and parameters were used to analyze the transmission risk and characteristics of schistosomiasis.</p><p><strong>Results: </strong>A total of 6 428 individuals were examined with an average schistosomiasis antibody positive rate of 39.80%（2 485/6 428）. In terms of age, the peak of antibody positive rate in Caohui, Xinhua, Jingtou, Yuye, Tieguai, Longshang, and Hebei villages occurred in the age group of 46-50 （82.86%, 58/70）, 31-35 （60.78%, 31/51）, 31-35 （68.42%, 26/38）, 41-45（55.04%, 71/129）, 51-55 （62.38%, 63/101）, 56-60 （31.43%, 33/105）, and 16-20 （21.88%, 7/32） years old, respectively. In general, the antibody positive rate showed a trend of increase followed by a decrease with increasing age in each village. The best model for the data of Caohui, Xinhua and Jingtou and Yuye village was the two-stage catalytic model. The estimated seroconversion rate in these villages was 0.049 5, 0.044 0, 0.055 7, and 0.034 4 respectively, all higher than the corresponding sero-negative conversion rate of 0.005 9, 0.019 6, 0.015 5, and 0.017 8. The best model for the data of Longshang, Tieguai and Hebei villages was the reversible and two-stage compound model. The seroconversion rate in these villages was 0.062 9, 0.168 1, and 0.039 4 respectively, the seroreversion rate was 0.168 8, 0.121 1, and 0.152 2, and the sero-negative conversion rate was 0.001 7, 0.000 2, and 0.090 9.</p><p><strong>Conclusions: </strong>The catalytic model based on antibody positive rate by age strata could reflect the transmission rate and risk quantitatively and may provide guidance for making control strategies.</p>","PeriodicalId":23981,"journal":{"name":"Zhongguo ji sheng chong xue yu ji sheng chong bing za zhi = Chinese journal of parasitology & parasitic diseases","volume":"34 5","pages":"418-23"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36417304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Epidemiological Survey on Intestinal Parasitic Infections in Lhasa City in 2014].","authors":"Jian-feng Liu,&nbsp;Xiao-lin Jin,&nbsp;Kun Yang,&nbsp;Jin-shui Xu,&nbsp;Yi-xin Qian,&nbsp;Wei-an Yan,&nbsp;Xi Zha,&nbsp;Sang Zhuo Ga Ge,&nbsp;Dan Wang Mu Yuan,&nbsp;Mei Zhang,&nbsp;Jin-hui Li,&nbsp;Hai-tao Yang","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To investigate the prevalence of parasitic infections in Lhasa, Tibet.</p><p><strong>Methods: </strong>The residents in Chengguan District, Dangxiong County, Dazi County and Qushui County were selected to participate in the study in 2014, using the stratified random sampling method. Infections with the soil-borne nematodes in feces were examined in triplicates using the Kato-Katz method. Further, the Enterobius vermicularis were examined using the cellophane anal swab method in children aged 3-12 years, and the intestinal protozoa were detected by iodine staining. The parasitic infection was analyzed by sex, age, and occupation. Comparisons were made using Chi-square test.</p><p><strong>Results: </strong>A total of 1 015 residents（39.3±18.2 years: age range, 1-89 years） participated in the study, including 391 males（38.6%） and 623 females（61.4%）. Two hundred and forty-nine participants were positive for parasitic infections, with an overall infection rate of 24.5%（249/1 015）. The infection rate was 21.7%（220/1 015） for Taenia sp., 0.2%（2/1 015） for Trichuris trichiura and E. vermicularis respectively, 4.1%（42/1 015） for Entamoeba coli, 0.4%（4/1 015） for Giardia lamblia, 0.2%（2/1 015） for Iodamoeba butschlii. No infection was found for other parasites. There was no significant sexual difference in the infection rate of Taenia (male 21.2%, 83/391; female 22.0%, 137/624), T. trichiura (male 0; female 0.3%, 2/624), E. vermicularis (male 0.3%, 2/391; female 0.2%, 1/624), E. coli (male 5.4%, 21/391; female 3.4%, 21/624), G. lamblia (male 0.8%, 3/391; female 0.2%, 1/624), or I. butschlii (male 0; female 0.3%, 2/624) (P>0.05). The Taenia sp. infection rate in the age groups of 0-17, 18-29, 30-39, 40-49, 50-59 and ≥ 60 years was 10.9%（18/165）, 14.0%（18/129）, 23.0%（43/187）, 25.3%（61/241）, 26.5%（41/155）, and 28.3%（39/138）, respectively, with significant differences between groups of 0-17 and 40-49 years and between groups of 50-59 and ≥ 60 years (P<0.01). The infection rate of E. coli, T. trichiura and I. butschlii was highest in the age group of 50-59 years（6.5%, 10/155; 0.7%, 1/155; 1.3%, 2/155 respectively）. Among various occupations, farmers showed the highest infection rate for Taenia（44.5%, 147/330）, E. coli（6.4%, 21/33）, E. vermicularis （0.6%, 2/330） and I. butschlii（0.3%, 1/330）; housewives had the highest infection rate for T. trichiura（2.5%, 1/40）; and the students had the highest infection rate for G. lamblia (0.7%, 1/134).</p><p><strong>Conclusion: </strong>There are infections with various intestinal parasites in the participants of Lhasa City, among which taenia infection reaches 20.7% while others have a low level of infection.</p>","PeriodicalId":23981,"journal":{"name":"Zhongguo ji sheng chong xue yu ji sheng chong bing za zhi = Chinese journal of parasitology & parasitic diseases","volume":"34 5","pages":"405-8"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36417303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}