Results 111 to 120 of about 10,140 (227)

A study of the infectivity of the cercariae of Schistosoma mansoni and Schistosoma haematobium [PDF]

open access: yes
The effect of various factors on the infectivity of the cercariae of S. mansoni and S. haematobium were studied. It has clearly been shown that the infectivity of cercariae of both species is directly influenced by those factors ...
Ghandour, A. M. A
core   +1 more source

Abstract: Lethal Effect of some Stylet Cercariae on Various Fishes

open access: yes, 1947
Incidental to a study being conducted on the cercariae infesting the snails of Carrol Lake, Oneida County, Wisconsin, it has been found that certain Xiphidiocercariae, when in high concentrations, will kill fish of various species. Controlled experiments
Brooks, F. G.
core  

ON TWO AMPHISTOME CERCARIAE FROM DISTRICT MEERUT

open access: yes, 2000
The present communication deals with a known and unknown amphistome cercariae from District Meerut. Cercaria baughi n.sp. was collected from Indoplanorbisexustus (Deshyaes) and characterized in having different shapes of eye spots, absence of crystalline
., NEELAMPANWAR, PANDEY, K.C.
core  

Research Notes: Experimental Infection with Strigoid Cercariae

open access: yes, 1958
During the summers of 1947 and 1948 strigeoid cercariae from Carrol Lake, Wisconsin were collected and identified by the late Dr. F. G. Brooks and turned over to the writer for use in the experimental infection of frog tadpoles and various fish.
Hoffman, Glenn L.
core  

Glycocalyx shedding by cercariae of bird schistosomes [PDF]

open access: yes, 2012
Trichobilharzia spp. are avian schistosomes related to medically important human parasites of the genus Schistosoma. Penetrating cercariae are well known as causative agent of cercarial dermatitis in humans.
Chaloupecká, Jana
core  

The cysteine proteinases of Schistosoma mansoni cercariae

open access: yes, 1997
Based on substrate preferences, cercariae of Schistosoma mansoni were seen to express both cathepsin L and cathepsin B cysteine proteinases, although the former activity was many-fold greater.
Dalton, JP   +7 more
core   +1 more source

Antiparasite defenses of fathead minnows exposed to trematode cercariae [PDF]

open access: yes, 2008
105 leaves : ill. ; 29 cm.Parasites exert substantial costs on their hosts. Thus, natural selection should favour behavioural defenses that reduce hosts’ exposure to parasites. This prediction has rarely been tested for aquatic hosts exposed to parasites.
University of Lethbridge. Faculty of Arts and Science   +1 more
core  

Prevalence of Cercariae Infection in Snails From the Lymnaeidae and Physidae Families in Aquatic Regions of Guilan Province, Northern Iran, and the Effect of Some Physicochemical Parameters of Water on Snail Abundance and Infection Rate [PDF]

open access: yesمجله دانشگاه علوم پزشکی گیلان
Background: Some freshwater snails are as intermediate hosts of human and animal parasitic trematode. Study on freshwater snails’ fauna and cercariae infection play important role to detect sources of infection.
armin ali golzadeh kenarsari   +3 more
doaj  

Attachment and penetration of Centrocestus armatus (Digenea: Heterophyidae) cercariae to gills of secondary intermediate fish hosts

open access: yes, 2008
The attachment and penetration of Centrocestus armatus cercariae into the fish host Zacco temmincki are described in this study. Light and scanning electron microscopy (SEM) were used to examine the topographical features and behavior of cercariae ...
Paller, Vachel Gay V., Uga, Shoji
core  

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