河南省人群肠道寄生虫感染分析

目的了解河南省人群肠道寄生虫感染的流行态势，制定现阶段寄生虫病防治策略。方法按照《全国人体重要寄生虫病现状调查》实施细则规定方法和要求，选择安阳市郊区和郸城县6个调查点。结果1990年调查安阳市郊人群肠道寄生虫感染率36．23％，发现12种肠道寄生虫，多虫感染者142例，蛔虫感染者平均EPG 1794．69；2002年调查人群感染率为4．11％，未发现多虫感染者，EPG为548．88；1990年郸城县人群感染率77．87％，2002年降为27．26%，人群查出的肠道寄生虫也由12种减为10种，多虫感染者由816例降为53例，人群蛔虫EPG由2515．49降为1124．90。结论河南省人群寄生虫感染率或度呈总体下降趋势，这与经济的发展、人群文化教育水平的提升、卫生意识的培养、环境条件的改善及防治措施的实施密不可分，但不同地区下降幅度不同，低年龄组仍是受寄生虫感染的高危人群。     

青海省湟中县人体肠道寄生虫分布调查

对青海省湟中县人体肠道寄生虫分布状况进行调查，共检三乡１６５５人，肠道寄生虫总感染５４．９８％，检出寄生虫１３种，其中蠕虫６种，原虫７种，结果表明，我县人群肠道寄生虫的分布特点为：（１）以感染蛔虫为主，多虫种并存；（２）存在明显的地区分布差异；（３）女性显高于男性；（４）以５￣１４岁的学龄儿童和学龄前儿童感染率较高，并与年龄呈负相关关系；（５）多虫感染和蛔虫感染度较低。     

河南省人群肠道寄生虫感染分析

目的 了解河南省人群肠道寄生虫感染的流行态势,制定现阶段寄生虫病防治策略。 方法 按照《全国人体重要寄生虫病现状调查》实施细则规定方法和要求,选择安阳市郊区和郸城县6个调查点。 结果 1990年调查安阳市郊人群肠道寄生虫感染率36.23％,发现12种肠道寄生虫,多虫感染者142例,蛔虫感染者平均EPG 1794.69;2002年调查人群感染率为4.11％,未发现多虫感染者,EPG为548.88;1990年郸城县人群感染率77.87％,2002年降为27.26%,人群查出的肠道寄生虫也由12种减为10种,多虫感染者由816例降为53例,人群蛔虫EPG由2 515.49降为1 124.90。 结论 河南省人群寄生虫感染率或度呈总体下降趋势,这与经济的发展、人群文化教育水平的提升、卫生意识的培养、环境条件的改善及防治措施的实施密不可分,但不同地区下降幅度不同,低年龄组仍是受寄生虫感染的高危人群。     

全国人体寄生虫分布调查：虫种的人群感染

首次全国人体寄生虫分布调查查明了主要虫种的人群感染率和特点，我国人体感染寄生虫的总感染率和多数虫种感染率都显示了女性高于男性的性别分布特点。在年龄分布上是５—１４岁儿童为多种寄生虫高发人群。我国人体寄生虫感染的职业分布特点是许多职业都有其高感染虫种，如蛔虫感染是学生最高，钩虫和华支睾吸虫感染是半农半商的菜农最高，鞭虫感染率是渔民最高，贾第虫和溶组织内阿米巴和带绦虫是牧民和半牧民最高。这次还查明了危害各民族的主要虫种。部分省、区还对主要虫种感染做了家庭聚集性分析。     

陕西省宝鸡地区四县人体寄生虫分布调查

本文报道宝鸡市首次全面调查9210人人体寄生虫感染情况,共查见线虫4种,绦虫3种,原虫7种。人群的寄生虫感染率为59.3％。14岁以下少年儿童感染率为71.6％,一人同时感染两种以上寄生虫者1258人,混合感染率为13.7％。蛔虫为主要感染虫种,其感染率为51.6％。阐明了本地区人体寄生虫分布规律以及不同性别、年龄的人群与不同地区虫种之间的感染关系,提出了主要的感染虫种及易感人群,对全面开展寄生虫病防治工作有其重要意义。     

杭州市西湖区2次人体重要寄生虫病调查

目的了解杭州市西湖区人体重要寄生虫感染状况和流行规律,综合评价寄生虫病防治效果。方法按照《全国人体寄生虫分布调查实施细则》规定的方法和要求进行。结果 2003年查出虫种4种,总感染率为7.81%,钩虫、蛔虫、鞭虫、蛲虫感染率分别为5.61%、0.13%、1.83%、4.43%;2009年查出虫种4种,总感染率为2.07%,钩虫感染率为1.87%,蛔虫、鞭虫、蛲虫感染率均为0.10%。低年龄和中老年组是感染寄生虫的高危人群。结论杭州市西湖区人体寄生虫总感染率和各虫种感染率均大幅度下降,钩虫是西湖区人体寄生虫主要感染虫种。     

江西省农村居民肠道寄生虫感染调查及蛔虫生物流行病学研究

目的 探讨江西农村居民肠道寄生虫感染现状及蛔虫病生物流行病学特点。方法 采用粪检、化疗驱虫后收集虫体等方法对江西进贤县鹿塘试区625名居民进行了研究。结果 该试区居民感染9种肠道寄生虫，总感染率为72．80％，其中蛔虫、钩虫、鞭虫卵的阳性率分别为51．52％、11．80％和34．60％。以噻嘧啶对全体居民治疗后，在59．40％的居民中检获蛔虫，感染者平均虫荷为2．97条（范围1－32条），10．00％的排虫者可见未成熟蛔虫，推算人群每月蛔虫再感染率为5．13％。对粪检虫卵假阴性人群的分析显示，仅有单性蛔虫寄生者（单雄或单雌）占82．93％，有1条未成熟雌虫和1－4条雄虫寄生者占17．03％。粪检虫卵假阴性率随着寄生蛔虫数的增加而减少，当感染6条以上蛔虫时，无假阴性出现。结论 该社区人群肠道寄生虫感染率高，蛔虫再感染严重，有必要进行反复治疗以防治效果；由于单性感染或未成熟蛔虫的缘故，居民实际蛔虫感染率要高于Kato-Katz法检查所见。     

河南省人群肠道线虫感染情况

本文报告本省人群的肠道线虫感染情况。按全国人体寄生虫分布调查实施细则的要求与方法，对本省３９个县、市１６４个点的人群进行调查。共检查８５５５５人，查见线虫感染者４８１３４例，其感染率为５６．３％。查见线虫７种，人群各种线虫的感染率分别为蛔虫４１．４％、钩虫２０．７％、鞭虫８．２％、东方毛圆线虫０．０１％、粪类圆线虫０．０３％和节结线虫１例。男、女人群的蛔虫、鞭虫及钩虫的感染率依次为３６．３％和４３．４％、８．１％和８．４％、２１．８％和１９．５％。蛔虫和钩虫为本省肠道线虫的重点虫种。１５岁以下的儿童、少年是蛔虫感染的重点人群，１６岁以上者是钩虫感染的重点人群。     

江西省农村居民肠道寄生虫感染调查及蛔虫生物流行病学研究

目的探讨江西农村居民肠道寄生虫感染现状及蛔虫病生物流行病学特点.方法采用粪检、化疗驱虫后收集虫体等方法对江西进贤县鹿塘试区625名居民进行了研究.结果该试区居民感染9种肠道寄生虫,总感染率为72.80%,其中蛔虫、钩虫、鞭虫卵的阳性率分别为51.52%、11. 80%和34.60%.以噻嘧啶对全体居民治疗后,在59.40%的居民中检获蛔虫,感染者平均虫荷为2.97条(范围1～32条),10.00%的排虫者可见未成熟蛔虫,推算人群每月蛔虫再感染率为5.13%.对粪检虫卵假阴性人群的分析显示,仅有单性蛔虫寄生者(单雄或单雌)占82.93%,有1条未成熟雌虫和1～4条雄虫寄生者占17.03%.粪检虫卵假阴性率随着寄生蛔虫数的增加而减少,当感染6条以上蛔虫时,无假阴性出现.结论该社区人群肠道寄生虫感染率高,蛔虫再感染严重,有必要进行反复治疗以巩固防治效果;由于单性感染或未成熟蛔虫的缘故,居民实际蛔虫感染率要高于Kato-Katz法检查所见.     

2006-2008年武鸣县人体肠道寄生虫感染调查

2006-2008年广西壮族自治区武鸣县人体肠道寄生虫感染调查显示,当地人群肠道寄生虫总感染率为46.65%,蛔虫、钩虫、鞭虫、蛲虫和华支睾吸虫感染率分别为0.39%、0.71%、0.39%、25.71%和45.49%。华支睾吸虫已成为优势虫种,应继续加强宣教和防治工作。     

Epidemiology of Blastocystis hominis and other intestinal parasites in a Vietnamese female immigrant population in southern Taiwan

There has been a rapid increase in cross-border female marriage immigrants in Taiwan. In this study, 1,434 Vietnamese female marriage immigrants arriving between July 1998 and June 2001 were examined for intestinal parasites. Most (77.9%) of these women were 20-29 years of age. The prevalence of intestinal parasite infection was 37.7%, and the trend increased from 1999 to 2001 (statistically significant, p < 0.0001), but decreased among age subgroups (p < 0.0001). Among the 20 species of intestinal parasites found in this study, 10 species (27.8%) were transmitted via the fecal-oral route, 5 (14.6%) via the soil-mediated route, and 5 (0.7%) by food-borne infection. The prevalence of blastocystosis (20.4%) and hookworm (9.7%) remained high among this population. The results provide unprecedented information on intestinal parasitic infection among these immigrants in southern Taiwan and recommend that appropriate health care be given after parasite infection is confirmed in these migrant communities.     

湖南省人群肠道寄生虫感染情况的调查

本文报告湖南省20个县65个调查点人群肠道寄生虫分布情况。受检率为94.3％(34 615/36 701),总感染率为66.3％(22 954/34615),共查见21种肠道寄生虫,其中包括线虫7种、 绦虫2种、吸虫3种和原虫9种。以线虫感染率为高,其中蛔虫感染率最高(61.1％)。认为寄生虫感染率的高低与当地的地理类型,经济文化及民族有关。     

Frequency distributions of Echinococcus granulosus and other helminths in stray dogs in Tunisia

The intestinal helminths infecting stray dogs were investigated in the Testour and Bouzid regions of Tunisia. Overall, 21% of the dogs necropsied were found to be infected with Echinococcus granulosus. The prevalence among the animals from Testour (27.0%) was significantly higher than that in the dogs from Bouzid (6.9%). Although the prevalence of this species in the dog populations did give a significant fit to the age-prevalence models reported earlier, the best fit was not consistent with the known biological parameters of the parasite. The frequency distribution of E. granulosus was highly aggregated, with a mean abundance of infection of 538 parasites/host and a mean intensity in infected animals of 2534 parasites/host. Several Taenia species were also found in the dogs, but none of these showed evidence of an aggregated distribution and the frequency distribution of each fitted a Poisson distribution, which is unusual for naturally acquired infections. All the other cestode species and the nematode species encountered had aggregated distributions in the dogs. As there was relatively little correlation between the worm burdens of the different parasite species in the dogs, individual dogs may not be generally susceptible or resistant to intestinal helminths of several species.     

河南省人体重要寄生虫病流行现状调查与分析

目的掌握河南省人体重要寄生虫病流行现状。方法按照《全国人体重要寄生虫病现状调查》实施细则制定的方法和要求,抽取17个县51个调查点进行肠道寄生虫调查,10个县20个点进行旋毛虫病调查,10个县30个点进行囊虫病调查,5个县进行弓形虫病调查,1个县进行包虫病调查,2个县进行黑热病媒介白蛉调查。结果肠道寄生虫感染调查25 894人,总感染率为14.96%(3 873/25 894),其中蠕虫感染率为9.80%(2 537/25 894),原虫感染率为6.61%(1 609/24 348)。查出肠道寄生虫29种,其中蠕虫18种,原虫11种。人群血清学调查,旋毛虫、囊虫、包虫和弓形虫抗体阳性率分别为2.97%(300/1 0103)、0.05%(1/2 200)、0.60%(6/1 007)和4.64%(216/4 660);黑热病媒介调查2个县,发现2种白蛉,共317只,中华白蛉占98.42%(312/317)。结论河南省人群肠道寄生虫感染率较10年前显著下降,但不同地区流行情况仍有较大差异,低年龄组仍是寄生虫感染的高危人群。人群旋毛虫和囊虫感染率较低,弓形虫感染率相对较高,包虫病仅有局部发病灶点。     

Taxonomic, topical and quantitative structure of the community of intestinal flukes (Digenea) of mallards, Anas platyrhynchos Linnaeus, 1758 from the area of Szczecin

Taxonomic, topical and quantitative structure of the community of intestinal flukes (Digenea) of mallards, Anas platyrhynchos Linnaeus, 1758 from the area of Szczecin. A total of 55 mallards (Anas platyrhynchos L.) from the area of Szczecin were examined for the presence of intestinal flukes (Digenea). This study covered the taxonomic structure (specific composition and taxonomic affiliation of the parasites), topical structure (parasites' distribution within the host's organism), and quantitative structure (infection intensity, abundance, prevalence, and infection index "Z"). Flukes were found in 69.1% of the birds studied. The highest intensity of infection and prevalence exhibited species of the family Echinostomatidae (Echinostoma revolutum, Echinostoma miyagawai, Echinostoma sp., Echinoparyphium recurvatum) and Notocotylus attenuatus of the family Notocotylidae. The mallards surveyed hosted 15 species of flukes, representing 6 families. Echinostoma miyagawai Ishii, 1932 has been found for the first time in Poland. The present findings of Psilotrema similium and Prosthogonimus ovatus in mallard constitute new host records for these parasites.     

Intestinal helminth communities of Podarcis bocagei and Podarcis carbonelli (Sauria: Lacertidae) in NW Portugal

Summary A survey of gastrointestinal helminth communities of Podarcis bocagei and Podarcis carbonelli (Sauria: Lacertidae) from NW Portugal was conducted to determine the prevalence, intensity and diversity of intestinal parasites in these lizards. A few parasite species were found in both hosts, their prevalences, mean intensities and abundances of infection being low or very low. Low values of richness and abundance of parasite species were also found in the helminth infracommunities of individuals of both host species. These low values of parameters of infection and diversity are discussed and compared between both host species and among other Iberian lacertid lizards.     

湖北省人群寄生虫感染情况的调查

按全国人体寄生虫分布调查实施细则的要求和方法对咸宁、汉川、红安和安陆4县(市)14个点7125人作人体寄生虫感染情况的调查,另外,对3641名学龄前儿童作蛲虫感染情况的调查;随机检查农村妇女阴道毛滴虫1232人;对安陆市769名城关居民作人体蠕形螨感染情况调查。共检出寄生虫19种。其中蛔虫、钩虫、鞭虫、蛲虫、姜片虫、华支睾吸虫、并殖吸虫、棘口科吸虫、东方毛圆线虫、带绦虫、微小膜壳绦虫、溶组织内阿米巴、结肠内阿米巴、贾第虫、布氏嗜碘阿米巴、微小内蜒阿米巴、人毛滴虫、阴道毛滴虫和人蠕形螨的感染率依次为27％、2％、20.3％、7.1％、1.7％、0.3％、0.1％、0.2％、0.06％、0.2％、0.03％、0.2％、2.3％、0.2％、0.02％、0.2％、0.04％、7.3％和22.8％。所查见的虫种除蛔虫、鞭虫和阿米巴原虫等较常见的虫种外,还查见了棘口科吸虫、微小膜壳绦虫、毛圆线虫和贾第虫等较少见的虫种。在地理分布上,以山区和湖区为主的咸宁市和汉川县查见的虫种较多,而以平原丘陵为主的安陆市和红安县查到虫种较少。     

Intestinal parasitic infections in schoolchildren of Abha (Asir), Saudi Arabia.

Stool specimens from 1282 children between the age of 5 and 13 years attending 10 primary schools for boys in the city of Abha, southwestern Saudi Arabia, were examined for the presence of intestinal parasites. Of these, 313, (24.4%) were found infected with one or more species of 11 intestinal protozoa and helminths. The most common pathogenic protozoa being Giardia lamblia (10.9%) followed by Entamoeba histolytica (4.1%). The nonpathogenic protozoan, Entamoeba coli had the highest prevalence rate (11.3%) in the children's stools. Hymenolepis nana was the commonest intestinal helminth (3.0%). Other intestinal helminths, including Ascaris lumbricoides, Trichuris trichiura. Schistosoma mansoni, Dicrocoelium dendriticum were detected to a lesser extent. The distribution of the common intestinal infections among the children surveyed were also analysed according to age, nationality and multiplicity of infection. Prevalence of E. histolytica was found to increase with age whereas Giardia infections were less common among older children. This pair of parasite species were strongly associated. Yemeni children had consistently the highest prevalence of infection with protozoa and helminths, followed by Saudi and non-Saudi children.