Histopathological changes in the gizzard of goslings, ducklings and chickens experimentally infected with Amidostomum anseris.     

F Vetési  D V Phuc  I Varga 《Acta veterinaria Academiae Scientiarum Hungaricae》1976,26(1):113-128

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Abortive Capillaria hepatica infection in the guinea pig.     

J Mészáros  I Varga 《Acta veterinaria Academiae Scientiarum Hungaricae》1976,26(3):377-383

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Amino acid composition and characteristic indices of bovine seminal plasma in case of infection of semen by mycoplasmas     

M A Ibrahim  L Stipkovits  H Boldizsár  Z Varga 《Acta veterinaria Hungarica》1984,32(1-2):15-21

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Stachybotryotoxicosis as a predisposing factor of ovine systemic pasteurellosis     

I Hajtós  B Harrach  G Szigeti  L Fodor  G Malik  J Varga 《Acta veterinaria Hungarica》1983,31(4):181-188

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Genetic analysis and phylogenetic comparison of Black queen cell virus genotypes     

Zsuzsanna Tapaszti  Petra Forgch  Csaba K&#x;vg  Grayna Topolska  Norbert Nowotny  Mikls Rusvai  Tams Bakonyi 《Veterinary microbiology》2009,139(3-4):227-234

Phylogenetic analysis of 22 Black queen cell virus (BQCV) genotypes collected from honeybee colonies in Poland, Austria and Hungary was performed on a partial helicase enzyme coding region (ORF1) and on a partial structural polypeptide coding region (ORF2). While the phylogeny based on the ORF2 region showed – with the exception of one strain from Poland – clustering of the genotypes corresponding to their geographic origin, the ORF1-based tree exhibited a completely different distribution of the Polish strains: three of them clustered within a branch clearly separated from all other central European BQCVs, while four other Polish strains remained well within the central European BQCV genotypes. In order to investigate this discrepancy in more detail, the nearly complete genome sequences of the three differing Polish strains were determined, together with one Hungarian sample. The sequences were aligned to each other and to the reference strain from South-Africa. Comparison of the different genome regions revealed that the 5′-UTR and the intergenic regions of the BQCV genome are highly conserved with longer homologous sections. ORF1 (non-structural protein coding region) was found more variable compared to ORF2 (structural protein coding region). The 5′-proximal third of ORF1 was particularly variable and contained several deletions/insertions. The sudden changes in the similarity levels of BQCV strains in different genomic regions are indicative of preceding recombination events.  相似文献   

Extraintestinal nematode infections of red foxes (Vulpes vulpes) in Hungary   总被引：1，自引：0，他引：1  

Sréter T  Széll Z  Marucci G  Pozio E  Varga I 《Veterinary parasitology》2003,115(4):329-334

A survey was carried out to investigate the prevalence and worm burden of extraintestinal nematodes in 100 red foxes (Vulpes vulpes) of Hungary. The overall prevalence of nematode infections of the respiratory tract was 76%. Eucoleus aerophilus (Capillaria aerophila) was the predominant species (66%), followed by Crenosoma vulpis (24%), Eucoleus (Capillaria) b?hmi (8%) and Angiostrongylus vasorum (5%). Pearsonema (Capillaria) plica was found in 52% of the urinary bladders. In 3% of the foxes, Trichinella britovi was present in muscle samples. The high prevalence of lungworms and P. plica and the fox colonisation in urban areas may enhance the prevalence of these nematode infections in domestic dogs and cats, and the flow of T. britovi from the sylvatic cycle to the domestic cycle, enhancing the risk of infections in humans.  相似文献   

Ectoparasite infestations of red foxes (Vulpes vulpes) in Hungary     

Sréter T  Széll Z  Varga I 《Veterinary parasitology》2003,115(4):349-354

A survey was carried out to investigate the ectoparasite infestations of 100 red foxes (Vulpes vulpes) in Hungary. The overall prevalence of flea and tick infestation was high (62 and 86% with the dominance of the anthropophil Pulex irritans and Ixodes ricinus), but the number of parasites was low to moderate. Felicola vulpis was not found in the present study, and the prevalence of Otodectes cynotis was only 2%. Based on prevalence (21%), mange lesion scores, and the negative correlation between lesion scores and condition of foxes, Sarcoptes infestation should be considered as the most important parasitosis of foxes in Hungary. Besides the ecological significance of these parasites, the high overall prevalence of mange and anthropophil flea and tick infestations of foxes and the appearance of these animals in the synanthropic environment as a result of the increasing population size, may result in the increasing incidence of flea, tick and accidental mite infestation of man and domestic animals, and may enhance the transmission rate of some vector-borne diseases.  相似文献   

Comparison of surface antigens of some Campylobacter fetus subsp. fetus strains of ovine origin by polyacrylamide gel electrophoresis and immunoblotting.     

J Varga 《Zentralblatt für Veterin?rmedizin. Reihe B. Journal of veterinary medicine. Series B》1991,38(7):497-504

Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and immunoblotting were used to identify and to compare the surface antigens of eight C. fetus subsp. fetus strains. Seven strains (one of serogroup A and six of serogroup B) were isolated from aborted ovine fetuses, while one strain (serogroup A) originated from an aborted calf fetus. Saline extracts at 56 degrees C and 100 degrees C were used as antigens. Antisera were produced in rabbits. In saline extracts (56 degrees C) of the strains at least 19 fractions were identified by SDS-PAGE, with molecular masses ranging from approx. 4,800 to 205,000. The major bands appeared at 205,000, 66,000, 31,500, 25,000, 21,000 and 17,500. Despite the fact that the strains were cultured from 4 different sheep flocks and belonged to serogroup A or B, the SDS-PAGE profiles of the strains were very similar. When boiled (100 degrees C) extracts were used, a band migrating at 32,500 in sheep strains and a band at 97,500 in the calf isolate were missing. Most of the bands obtained by SDS-PAGE could be identified also by the immunoblot procedure. A or B type specificity of the ovine isolates was due to an LPS fraction, migrating at approx. 21,000, while the other LPS fractions appearing under this region although reacted with antisera did not influence the type specificity. Using alkaline extracts (pH 12) in SDS-PAGE, LPS fractions gave more pronounced profiles. In two of our C. fetus subsp. fetus isolates, plasmids with a molecular mass of 31,500 were identified.  相似文献   

Spatial distribution of Dermacentor reticulatus and Ixodes ricinus in Hungary: evidence for change?     

Sréter T  Széll Z  Varga I 《Veterinary parasitology》2005,128(3-4):347-351

A survey was conducted to investigate the spatial distribution of Ixodes ricinus and Dermacentor reticulatus in Hungary and to compare these data with the results of a previous large-scale survey. In the survey conducted in the 1950s, D. reticulatus adults were detected in two isolated areas of two counties, and the presence of these ticks in the collection was explained by accidental introduction. In the present survey, D. reticulatus became the second most common species occurring in all 16 counties involved in the monitoring and showed high prevalence. The change in the spatial distribution of this tick species, the increase of incidence of Babesia canis infection in Hungary, and the increasing number of canine babesiosis case reports from other Central and Central Eastern European countries since the 1970s suggest an expansion of the geographic range of D. reticulatus and intensification of the transmission rate of B. canis and probably other D. reticulatus-borne diseases (e.g. tularemia and tick-borne lymphadenopathy) in the region. The spatial distribution of I. ricinus was roughly in line with the results of the earlier survey. I. ricinus was the most common tick species being present in all 16 counties with the highest prevalence. Nevertheless, the comparison of the data of the previous and current survey cannot be used for fine-scale analysis; thus, it cannot be dismissed that the spatial distribution of I. ricinus also changed during the past decades. The spatial distribution patterns of tick-borne encephalitis in Hungary and other Central Eastern European countries may indicate such a change.  相似文献   

Biochemical and serological study of two mycoplasma strains isolated from geese     

Z Varga  L Stipkovits  M Dobos-Kovács  G Czifra 《Archiv fuer experimentelle veterinaermedizin》1989,43(5):733-736

2 mycoplasma strains were isolated, one from the phallic lymph of a gander and the other from a cloacal swab of a laying goose. The strains proved to be different from mycoplasma species isolated from geese before. Strain No. 1223 is a glucose-negative and arginine-negative species belonging to the genus Mycoplasma. In the growth inhibition test, it fails to react with hyperimmune sera raised in rabbits against the presently known mycoplasma species of avian origin nor with sera produced against mammalian mycoplasma species sharing its biochemical properties. Strain No. 1225 belongs to the digitonin resistant Acholeplasmataceae family. It is glucose-positive and aesculin-positive. It is negative by all the other tests and fails to react with sera produced against the presently known acholeplasma species.  相似文献