Folia Parasitologica, vol. 37 (1990), issue 3

Pathogenicity and ultrastructural pathology of Eimeria debliecki (Douwes, 1921) in experimentally infected pigs.

J Vítovec, B Koudela

Folia Parasitologica 37[3] 193-199 (1990)

It was confirmed, after experimental infection of 24 weaned pigs with different doses (200,000 and 4 mil.) of Eimeria debliecki oocysts that the developmental cycle of E. debliecki occurs in the anterior jejunum and after a high dose of oocysts also in the duodenum and anterior parts of the middle jejunum. Pathological changes characterized by a light atrophy of the villi, scarcely dispersed minute erosions of the epithelium in upper parts of the mucosa and an inflammatory response in the propria of the anterior jejunum were found in the area of the largest occurrence of developmental stages of E. debliecki (from 50 cm to 100 cm from the pylorus)....

Laboratory diagnosis of acute toxoplasmosis by immunosorbent agglutination assay (IgM ISA).

A Valkoun, M Stefánik

Folia Parasitologica 37[3] 201-205 (1990)

A group of 401 patients suspected for toxoplasmosis was examined by the indirect immunofluorescent antibody test (IFAT). All patients positive in IFAT (176) were examined by the immunosorbent agglutination assay (IgM ISA). In the IgM ISA 154 of them were negative, 10 temporarily and 12 high-positive. Some of high-positive patients were examined repeatedly; decrease of high levels of specific IgM antibodies occurred 2-9 months after the first examination. For the IgM ISA antigen prepared from peritoneal exudate of experimentally infected mice was used. The antigen was stable at 4 degrees C or in liquid nitrogen at least 1 year. The IgM ISA combined...

Effect of cortisone on Toxoplasma gondii infection studied by electron microscopy.

D Hulínská, J Sýkora, M Zástera

Folia Parasitologica 37[3] 207-212 (1990)

The ultrastructural features of cortisone effect on the early development and formation of Toxoplasma gondii tissue cysts were examined in the brains of experimental mice on days 8-47 post inoculation. The cortisone was injected subcutaneously into mice twice a week: 1) at the early acute phase, 5 days post infection, and 2) at the transition phase of development, 12 days post infection. The disturbed regulation of the host-parasite relationship due to the effect of cortisone showed itself in an increase of T. gondii tachyzoites, cystozoites, and cysts not only by intracellular but also by as yet not described extracellular division. The persisting...

Synopsis of type specimens deposited in the helminthological collection of the Institute of Parasitology, Czechoslovak Academy of Sciences, in Ceské Budejovice. II. Cestoda, Trematoda and Acanthocephala.

F Moravec

Folia Parasitologica 37[3] 213-217 (1990)

The paper comprises a list of the cestode, trematode and acanthocephalan type specimens deposited in the helminthological collection of the Institute of Parasitology, Czechoslovak Academy of Sciences, in Ceské Budejovice. These materials include a total of 7 species of cestodes, 16 species of trematodes, and 5 species of acanthocephalans.

Environment and host-parasite relationships in Monogenea.

A Lambert

Folia Parasitologica 37[3] 219-224 (1990)

The interest of a new approach in taking up the problems of host-parasite relationships with environment is proposed in terms of population biology. Two different integrating levels are considered: a microenvironment that corresponds particularly to the host and a macroenvironment corresponding to the whole host-parasite system. Some examples are given that provide significant reasons in perceiving the biology of Monogenea under these aspects. To conclude we emphasize the importance of developing this new way for the study of hybrids models in relation to parental host systems.

The systematical composition of the family Heteraxinidae and other allied families of Monogenea.

Mamaev YuL

Folia Parasitologica 37[3] 225-230 (1990)

This paper briefly presents a system of Heteraxinidae and other allied small monogenean families of suborder Microcotylinea Lebedev, 1972 with the indication of specific composition of all taxa and diagnoses of some taxa; new families Megamicrocotylidae, Paramonoxinidae and Monaxinoididae are proposed.

Caryophyllaeides ergensi sp. n. (Cestoda: Caryophyllidea) from Leuciscus Leuciscus baicalensis from Mongolia.

T Scholz

Folia Parasitologica 37[3] 231-235 (1990)

The tapeworm Caryophyllaeides ergensi sp. n. (Cestoda: Caryophyllidea) is described from Leuciscus leuciscus baicalensis from the River Selenga basin in Mongolia. It differs from the only hitherto recognized species of the genus C. fennica (Schneider, 1902), mainly in its extremely long uterus with coils extending anteriorly to anterior half, sometimes up to anterior third of the body of gravid specimens.

A new genus of capillariids from birds, Ornithocapillaria gen. n. (Nematoda: Capillariidae).

V Barus, T P Sergeeva

Folia Parasitologica 37[3] 237-248 (1990)

A new genus, Ornithocapillaria gen. n., belonging to the family Capillariidae and subfamily Baruscapillariinae is described and its diagnosis is given. The type species of the genus is Ornithocapillaria ovopunctata (Linstow, 1873) comb. n., other species are O. cylindrica (Eberth, 1863) comb. n., O. quiscali (Read, 1949) comb. n., and O. picorum (Rudolphi, 1819) comb. n. The new genus is characterized by a relatively large membranous pseudobursa, shape of processes supporting pseudobursa, and presence of a vulval appendage in female. It includes only species parasitic in the intestine of birds of the orders Passeriformes, Falconiformes, Strigiformes,...

Immunodiagnostics of Toxocara canis in suspected ocular and visceral manifestations.

E H Safar, M E Azab, H M Khalil, M A Bebars, H el Hady, H M Khattab

Folia Parasitologica 37[3] 249-254 (1990)

Sera from patients with ocular and visceral manifestations of toxocariasis were tested by precipitin absorption (PAT), counter-immunoelectrophoresis (CIEP), indirect fluorescent antibody (IFAT) and ELISA. The ocular cases revealed a percentage of positivity of 36% by PAT, 0% by CIEP, 32% and 28% by IFAT with embryonated egg (EE) and frozen section antigens (FS) respectively and 40% by ELISA. The visceral cases revealed 44% positively by PAT, 24% by CIEP 52% and 48% by IFAT with EE and FS respectively and 52% by ELISA. Statistical evaluation was done to interpret the results.

Francisella tularensis from ixodid ticks in Czechoslovakia.

Z Hubálek, Z Juricová, J Halouzka

Folia Parasitologica 37[3] 255-260 (1990)

A total of 26,478 ixodid ticks (935 pools) were examined by intracerebral inoculation of suckling mice. Six species of ticks were tested: Ixodes ricinus (23,470 individuals), I. trianguliceps (12), Haemaphysalis punctata (831), H. concinna (39), Dermacentor reticulatus (69) and D. marginatus (2,057). The ticks were collected largely by flagging vegetation, a substantial minority (4%) from animals. Three strains of Francisella tularensis were isolated, one each from I. ricinus (males, district Breclav, southern Moravia), D. reticulatus (males, district Breclav) and D. marginatus (engorged females collected from sheep in Roznava district, eastern Slovakia)....

Susceptibility of Mastomys natalensis to Brugia malayi following pretreatment with antifilarials.

K Tyagi, P K Murthy, A B Sen

Folia Parasitologica 37[3] 261-265 (1990)

Mastomys natalensis pretreated with diethylcarbamazine (DEC), levamisole or centperazine were exposed to the standard inoculum of infective larvae of Brugia malayi. Percentage 'take' of infection, duration of prepatent period, course of microfilaraemia and number of adult worms recovered were compared with those of untreated infected Mastomys (control). DEC and centperazine did not alter the 'take' (DEC/centperazine: 100%; control: 88.24%) and the average prepatent period (DEC: 105.44 days; centperazine: 105.18 days, control: 109.20 days). In levamisole pretreated animals on the other hand, the 'take' was much lower (68.18%) with extended prepatent...

A new species of the genus Chauhanellus Bychowsky et Nagibina, 1969 (Monogenea) from the gills of a sea fish Tachysurus dussumieri (Val.) from Andhra Pradesh, India.

J Venkatanarsaiah, T Kulkarni

Folia Parasitologica 37[3] 267-270 (1990)

Chauhanellus chauhani sp. n., collected from the gills of a sea cat-fish, Tachysurus dussumieri (Valenciennes) from the Bay of Bengal, off the coast of Kakinada, Andhra Pradesh, India is described and illustrated. It differs from the related species of the genus--C. oculatus, C. flexiosus, C. australis, C. nagibinae, and C. pedunculatus--in the shape and articulation of accessory piece with cirrus and in having a crescentic posteromedian process on its dorsal bar. It has five transverse hard structures on the ventral surface of peduncular region, by which it differs from C. oculatus and C. australis the latter have 10-11 and 3 such hard structures,...

A new Monogenean species, Bicotyle lucknowensis sp. n. (Monogenea: Heteraxinidae), from the Indian fish, Gudusia chapra (Ham.).

N Agrawal, R Sharma

Folia Parasitologica 37[3] 271-274 (1990)

A new monogenean species, Bicotyle lucknowensis sp. n. of the family Heteraxinidae, has been described from the fish, Gudusia chapra (Ham.), from Lucknow, India. The new species is characterized by the number and shape of cirral spines, presence of an unarmed vagina and details of copulatory complex and haptoral armature.

Antigenic characterization of rat louse Polyplax spinulosa.

P Volf, L Grubhoffer, V Matha

Folia Parasitologica 37[3] 275-278 (1990)

Number and relative molecular weights of proteins in whole body homogenates of the louse, Polyplax spinulosa were determined using SDS-PAGE. 13 protein components from the total of 28 bands were defined as Con A binding glycoproteins. In immunoblotting sera of lice infested laboratory rats of BN strain specifically recognized 3 major protein components with r.m.w. of 77,000, 105,000 and 230,000 Da and from 6 to 8 minor protein components with r.m.w. of 31,000-180,000 Da.

Experimental infection of ticks Ixodes ricinus with tick-borne encephalitis virus under different microclimatic conditions.

V Danielová

Folia Parasitologica 37[3] 279-282 (1990)

The influence of environmental temperature and relative air humidity on the development of ticks Ixodes ricinus and their infection rate with tick-borne encephalitis virus was studied. It was found that the temperature influenced significantly the development of ticks, but it did not influence their infection rate. To the contrary, the relative air humidity influenced the infection rate. It is assumed that the intrinsic factors play a primary role in the infection of ticks, while extrinsic factors have a secondary role; they are probably important at border values only.

A record of gravid cestodes Bothriocephalus claviceps (Goeze, 1782) from the newts Triturus vulgaris (L.) (Amphibia).

T Scholz, F Moravec

Folia Parasitologica 37[3] 283-284 (1990)

Occurrence of Coxiella burnetii, Rickettsia slovaca, and organisms resembling bacillary rickettsiae in their natural foci in Slovakia 20 years after their first detection.

J Rehácek, E Kovácová, V Lisák, W Rumin

Folia Parasitologica 37[3] 285-286 (1990)