Folia Parasitologica, vol. 32 (1985), issue 3

SEASONAL FLUCTUATION IN THE PREVALENCE OF SPHAEROSPORA-RENICOLA AND MYXOSPOREAN BLOOD-STREAM STAGES IN CARP FINGERLINGS IN BULGARIA

G GRUPCHEVA, I DYKOVA, J LOM

Folia Parasitologica 32[3] 193-203 (1985)

Malaria in the province of Takeo, Cambodia.

M Giboda

Folia Parasitologica 32[3] 205-210 (1985)

Malaria was studied in the province of Takeo, Cambodia. In the hyperendemic region of Kirivong district, 49 (46.0%) of 105 suspected patients were found to be infected, 98% of them with Plasmodium falciparum and 2.0% with P. vivax. The highest prevalence (85.7%) was recorded in the group of 15-20-year-old patients. A total of 296 patients were examined in the hospital of Takeo during one year (1983-1984) and 77 (26.0%) of them were positive. P. falciparum infection was found in 76.6% and P. vivax in 23.4% of cases. The highest prevalence (42.3%) was also in the age-group of 15-20 years. The "7-day test" was used in vivo in 15 patients in order to detect...

Effects of low temperatures on larvae of the genus Trichinella.

D Hulínská, V Figallová, B Shaikenov

Folia Parasitologica 32[3] 211 (1985)

We examined the effect of an exposure to -25 degrees C (for 8 days) on the histochemistry and the fine structure of 30-day-old Trichinella larvae from muscle fibres of the diaphragm. The larvae of T. pseudospiralis and T. nelsoni were either destroyed in the muscle fibres, dead, eosinophile, or were not found. The structureless mass of a degenerating, changed sarcoplasm was highly AIP-active, and gave a weak positive reaction for SS-groups of proteins. The wall of the deformed capsule around T. nelsoni, and the cuticle of the larva, stained diffusely; it did not contain AM. In a few muscle fibres exposed to -25 degrees C, histochemical reactions of...

MORPHOLOGY AND HISTOCHEMISTRY OF CYSTICERCOIDS OF 3 CESTODE SPECIES OF THE GENUS TRIODONTOLEPIS YAMAGUTI, 1959 (HYMENOLEPIDIDAE)

J VALKOUNOVA

Folia Parasitologica 32[3] 217 (1985)

ELECTRON-MICROSCOPE OBSERVATIONS OF THE SPOROCYST OF POSTHARMOSTOMUM-GALLINUM WITENBERG, 1923 (BRACHYLAIMIDAE)

Z ZDARSKA, T N SOBOLEVA

Folia Parasitologica 32[3] 227 (1985)

Contribution to the question of relationships between Enterobius vermicularis (L.) and inflammatory processes in the appendix.

J Sterba, M Vlcek, P Noll, F Vorel

Folia Parasitologica 32[3] 231-235 (1985)

We evaluated a bioptic material of appendices from the hospital in Ceské Budejovice, obtained from 1977-1981. Of these, 2173 appendices were removed as cases of a clinical appendicitis, 788 for preventive reasons. In the cases of a clinical appendicitis with the incidence of pin worms in the appendix, the histological picture displayed significantly more chronical, inflammatory changes than in acute cases (test chi 2), while in cases of a clinical appendicitis without the presence of pin worms, we found more acute than chronical forms of inflammations. Our results are supported also by an analysis of preventively removed appendices, where again more...

Changes in the white blood picture during experimental larval ascariasis, toxocariasis and toxascariasis.

S Lukes

Folia Parasitologica 32[3] 237-245 (1985)

Haematological changes were studied in rabbits experimentally infected with different doses of Ascaris suum, Toxacara canis and Toxascaris leonina. The numbers of leucocytes, eosinophiles and neutrophiles were changed and the strongest eosinophila was observed between the 2nd and 3rd week of infection (5.2-7.1%). The intensity of reaction was not related to the used infection dose. The eosinophilia was always lower in toxocariasis and toxascariasis than in ascariasis at identical doses of infective material. Repeated infections resulted in an increase eosinophilia.

Aminopeptidase inhibitor from Ascaris suum.

J Zenka, J Prokopic

Folia Parasitologica 32[3] 247-253 (1985)

The correlation of aminopeptidase activity in the homogenate and perienteric fluid from Ascaris suum to the concentration of the studied fluids was assessed. The obtained non-linear correlations were interpreted as a result of the presence of the inhibitor. In further experiments, it was demonstrated that aminopeptidase inhibitor is present in the homogenate and perienteric fluid from A. suum. The effect of this inhibitor was studied using different substrates. The effects of the inhibitor on aminopeptidase activity of A. suum homogenate and on that of rabbit serum were studied. In other experiments it was found that an excess of the substrate impairs...

BIOLOGICAL COMPARISON OF DIFFERENT POPULATIONS OF ARGAS-(PERSICARGAS) PERSICUS (OKEN)

F DUSBABEK

Folia Parasitologica 32[3] 255-263 (1985)

SEASONAL ACTIVITY OF LARVAE AND NYMPHS OF IXODES-PERSULCATUS P-SCH IN THE EASTERN PART OF THE RUSSIAN PLAIN

J G SUVOROVA

Folia Parasitologica 32[3] 265-270 (1985)

The efficacy of Bacillus thuringiensis var. israelensis against larvae of the blackfly Odagmia ornata (Meig.) (Simuliidae) at low temperatures.

J Olejnícek, V Matha, J Weiser

Folia Parasitologica 32[3] 271-277 (1985)

The effect of the suspension of Bacillus thuringiensis var. israelensis spores on larvae of the blackfly Odagmia ornata was studied in the laboratory and under field conditions of a natural biotope in southern Bohemia. The preparation Moskitur was used and its effect was tested in laboratory at temperatures 0.1-2.9 degrees C and 17-19 degrees C. Although O. ornata larvae were able to filter feed on a lethal dose of the preparation even at a lower temperature than 2.9 degrees C, no marked manifestation of mortality was observed at low temperatures in comparison with a control sample.

A serological survey for Bhanja and tick-borne encephalitis viruses in sheep of eastern Slovakia.

Z Hubálek, J Mitterpák, J Prokopic, Z Juricová, J Kilík

Folia Parasitologica 32[3] 279-283 (1985)

755 sheep from 41 farms in the districts of Trebisov, Michalovce, Humenné and Roznava in the East Slovakian region were investigated on the presence of antibodies to Bhanja (neutralization test) and tick-borne encephalitis (haemagglutination-inhibition test) viruses. In respective districts 2.2%, 0.4%, 1.7% and 26.7% of animals (total 5.3%) were found to be positive on Bhanja virus, 4.4%, 1.5%, 1.7% and 5.0% (total 2.6%) on tick-borne encephalitis (TBE) virus. The considerable infection rate in sheep with Bhanja virus in the district of Roznava (mean 26.7%-on one farm as high as 63.9% serologically positive animals) can be explained by the local occurrence...

A mosquito pathogenic strain of Bacillus thuringiensis isolated from silkworm rearings in Vietnam

J Weiser, V Maťha, J Gelbič

Folia Parasitologica 32[3] 284 (1985)

A RED MOSQUITO IRIDESCENT VIRUS IN AEDES PUNCTOR IN CZECHOSLOVAKIA

J WEISER, Z ZIZKA

Folia Parasitologica 32[3] 285 (1985)