scholarly journals Genetic Uniformity of Echinococcus multilocularis Collected from Different Intermediate Host Species in Hokkaido, Japan

2007 ◽  
Vol 69 (2) ◽  
pp. 159-163 ◽  
Author(s):  
Munehiro OKAMOTO ◽  
Yuzaburo OKU ◽  
Tsutomu KUROSAWA ◽  
Masao KAMIYA
Keyword(s):  
Intermediate Host ◽  
Echinococcus Multilocularis ◽  
Host Species ◽  
Genetic Uniformity

The influence of second intermediate host species on the infectivity of metacercarial cysts of Echinoparyphium recurvatum

1999 ◽  
Vol 73 (2) ◽  
pp. 143-145 ◽  
Author(s):  
A.M. McCarthy
Keyword(s):  
Intermediate Host ◽  
Definitive Host ◽  
Host Species ◽  
Post Infection ◽  
Rana Temporaria ◽  
Biomphalaria Glabrata ◽  
Reproductive Status ◽  
Intermediate Hosts ◽  
Potential Influence ◽  
Second Intermediate Host

The potential influence of second intermediate host species on the infectivity of metacercarial cysts of Echinoparyphium recurvatum to the definitive host Anas platyrhynchos was examined experimentally. Echinoparyphium recurvatum metacercarial cysts were obtained from the following experimentally infected second intermediate hosts 14 days post expsoure to cercariae: Lymnaea peregra; Physa fontinalis; L. stagnalis;Planorbis planorbis; Biomphalaria glabrata; tadpoles of the amphibian Rana temporaria. Metacercarial cysts from each of these hosts were fed, in doses of 50 cysts per individual, to separate groups composed of between four and eight, 3-day-old A. platyrhynchos ducklings. All A. platyrhynchos were necropsied 15 days post-infection and the number, size, and reproductive status of E. recurvatum worms in the intestine was recorded. Analyses of variance on the number (transformed log (x + 1)) and size of worms revealed no significant differences in worms originating from metacercariae formed in the different second intermediate hosts (worm number P > 0.05, and worm size P > 0.05). All worms recovered were found to be gravid. It is therefore concluded that the species of second intermediate host utilized does not influence the infectivity of the metacercarial cyst of E. recurvatum, nor the subsequent establishment and reproductive status of the parasite in A. platyrhynchos.

A real-time multiplex-nested PCR system for coprological diagnosis of Echinococcus multilocularis and host species

2011 ◽  
Vol 109 (2) ◽  
pp. 493-498 ◽  
Author(s):  
Anke Dinkel ◽  
Selina Kern ◽  
Anja Brinker ◽  
Rainer Oehme ◽  
Amélie Vaniscotte ◽  
...  
Keyword(s):  
Real Time ◽  
Echinococcus Multilocularis ◽  
Host Species ◽  
Nested Pcr

scholarly journals The brown hare (Lepus europaeus) as a novel intermediate host for Echinococcus multilocularis in Europe

2015 ◽  
Vol 114 (8) ◽  
pp. 3167-3169 ◽  
Author(s):  
Valérie Chaignat ◽  
Patrick Boujon ◽  
Caroline F. Frey ◽  
Brigitte Hentrich ◽  
Norbert Müller ◽  
...  
Keyword(s):  
Intermediate Host ◽  
Echinococcus Multilocularis ◽  
Lepus Europaeus ◽  
Brown Hare

Observations on the suitability and importance of the domestic intermediate hosts of Echinococcus granulosus in Uttah Pradesh, India

1989 ◽  
Vol 63 (1) ◽  
pp. 39-45 ◽  
Author(s):  
M. Irshadullah ◽  
W. A. Nizami ◽  
C. N. L. Macpherson
Keyword(s):  
Life Cycle ◽  
Intermediate Host ◽  
Echinococcus Granulosus ◽  
Frequency Distribution ◽  
Host Species ◽  
Control Measures ◽  
The Other ◽  
Hydatid Cysts ◽  
Intermediate Hosts ◽  
Cyst Size

ABSTRACTThe present study investigated the suitability and importance of buffaloes, camels, sheep, goats and pigs in maintaining the life-cycle of Echinococcus granulosus in Aligarh, India. A total of 565 (36%) of 1556 buffaloes, 20 (2%) of 1208 goats, 5 (1%) of 559 pigs, 6 (6%) of 109 sheep and two of three camels were found to harbour hydatid cysts. The frequency distribution of the hydatid cysts in each intermediate host species was over-dispersed and in buffaloes cyst fertility increased with increasing cyst size. Of 2171, 95 and four buffalo, goat, and camel cysts examined 327 (15%), two (2%) and three cysts respectively were fertile. No pig or sheep cysts were found to contain protoscoleces. The unfenced buffalo abattoir and the large number of dogs allowed access to the abattoir coupled to the number of buffaloes slaughtered in comparison to the other potential hosts, indicates that the buffalo is the most significant host for maintaining the life-cycle of the parasite in this area of India. Applicable control measures for the region are suggested.

scholarly journals A random forest approach for predicting the presence of Echinococcus multilocularis intermediate host Ochotona spp. presence in relation to landscape characteristics in western China

2014 ◽  
Vol 55 ◽  
pp. 176-183 ◽  
Author(s):  
Christopher G. Marston ◽  
F. Mark Danson ◽  
Richard P. Armitage ◽  
Patrick Giraudoux ◽  
David R.J. Pleydell ◽  
...  
Keyword(s):  
Random Forest ◽  
Intermediate Host ◽  
Echinococcus Multilocularis ◽  
Western China ◽  
Landscape Characteristics

The Tibetan hare Lepus oiostolus : a novel intermediate host for Echinococcus multilocularis

2004 ◽  
Vol 92 (4) ◽  
pp. 352-353 ◽  
Author(s):  
Ning Xiao ◽  
Tiao-Ying Li ◽  
Jia-Min Qiu ◽  
Minoru Nakao ◽  
Xing-Wang Chen ◽  
...  
Keyword(s):  
Intermediate Host ◽  
Echinococcus Multilocularis

Antibody responses against Echinococcus multilocularis antigens in naturally infected Rattus norvegicus

1996 ◽  
Vol 70 (4) ◽  
pp. 355-357 ◽  
Author(s):  
A. Ito ◽  
M. Okamoto ◽  
H. Kariwa ◽  
T. Ishiguro ◽  
A. Hashimoto ◽  
...  
Keyword(s):  
Immune Response ◽  
Intermediate Host ◽  
Echinococcus Multilocularis ◽  
Rattus Norvegicus ◽  
Wistar Rats ◽  
Antibody Responses ◽  
Cestode Species ◽  
Capillaria Hepatica ◽  
Taenia Taeniaeformis ◽  
Norway Rats

AbstractTwo Norway rats, Rattus norvegicus, were found to be naturally infected with Echinococcus multilocularis in Japan. One of them was simultaneously infected with at least three different sized metacestodes of Taenia taeniaeformis. These two R. norvegicus rats and another R. norvegicus naturally infected with T. taeniaeformis and Capillaria hepatica were examined to see if they showed any antibody responses against these two cestode parasites with the view to obtaining more information on the importance of rats as the intermediate host for E. multilocularis. These R. norvegicus showed very poor antibody responses against the two cestode species, although the Wistar rats, R. rattus, experimentally infected with a single smaller sized metacestode of T. taeniaeformis showed stronger responses not only against T. taeniaeformis but also against E. multilocularis. Therefore the three R. norvegicus naturally infected with E. multilocularis and/or T. taeniaeformis demonstrated virtually no immune response, at least against these cestodes.

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