Showing papers in "Veterinary Parasitology in 2003"

TL;DR: In this article, partial amplification and sequencing of the 18s rRNA gene was used for molecular diagnosis of Babesia spp., Theileria spp, and Hepatozoon canis.

TL;DR: It is shown that most European isolates clustered unambiguously with previously described species, so that minor sequence dissimilarities found are due probably to strain variations.

TL;DR: To the knowledge, this is the first report of N. caninum antibodies in any marine mammal, and the first reported of T. gondii antibodies in walruses and in ringed, bearded, spotted, and ribbon seals.

TL;DR: The results indicate that the major consequence of tannin consumption in goats is a reduction in worm fecundity and egg output, which does not seem related to significant changes in the local mucosal response.

TL;DR: The results of this study demonstrate that beef calves in this area are primarily infected with the livestock genotype which is thought to be specific to artiodactyl hosts and non-infective to humans, suggesting that the Giardia carried by beef cattle may be a minimal zoonotic threat.

TL;DR: Although traditional veterinary healers and local livestock farmers claim both plants are effective as anthelmintics, the result indicate that only A. senegalensis showed promisingAnthelmintic activity especially with use of ground whole plant materials as used by some farmers.

TL;DR: The results support the contention that alternative forages could have a positive role in the control of helminth parasites in sheep, subject to successful agronomic development and integration of these forages into whole farm systems.

TL;DR: Serological findings indicate that human infection actually occurs in the area: 7 out of 428 adults examined (1.6%) had very high levels of antibodies to T. canis antigen, suggesting a previous contact with the Larva migrans of the nematode.

TL;DR: The hypothesis that the presence of the mosquito could affect the transmission pattern of canine heartworm disease in urban environment and, considering the aggressive anthropophylic behaviour of the species, could enhance the circulation of filarial nematodes from animals to humans is supported.

TL;DR: It was demonstrated that short- furred animals are at a higher risk of acquiring visceral leishmaniosis than the long-furred dogs, and the role of the dog as a reservoir for L. chagasi was confirmed.

TL;DR: The ethanol extract itself or single constituents of F. parviflora could be a promising alternative source of anthelmintic for the treatment of gastrointestinal trichostrongylids in small ruminants.

TL;DR: The study indicates that the difference in the effects of the two forages on HC infections may be related to type and concentration of tannins.

TL;DR: This study is the first to document the cumulative prevalence and infection patterns of Giardia and Cryptosporidium in beef cattle under ranch conditions.

TL;DR: DNA sequences of Amblyomma aureolatum and A. ovale were obtained to determine genetic differences between these tick species and showed a 13.1% difference between the two species.

TL;DR: In vivo, only quercetin was able to modify the pharmacokinetics of moxidectin in plasma of lambs by increasing significantly the area under the plasma concentration-time curve.

TL;DR: In this paper, the authors considered approaches to modeling the dynamics of infectious disease and the application of such models to nematode parasite infections in ruminants. And they developed models to account for host genetics and may be used to assess the effects of using genetics to control worms.

TL;DR: Results indicate that the seroprevalence of T. gondii infection in sheep and goats is relatively high, and PCR results demonstrate that T. Gondii has a significant role in ovine and caprine abortion.

TL;DR: The biology of trypanosome development in the fly and the multiple bacterial symbionts that inhabit the same gut environment is reviewed and a strategy is outlined where the replacement of susceptible insect phenotypes with their engineered refractory counterparts can result in decreased disease transmission.

TL;DR: The results show that more sensitive techniques such as PCR may be necessary, and may yield more reliable results, in the detection of low levels of Giardia in domestic cats.

TL;DR: Prevalence of T. gondii in free range chickens and ducks and phenotypically they were not type I because type I strains are lethal for mice was assessed, and infections with mixed genotypes were not found.

TL;DR: This is the first report of a sensitive pan-trypanosome PCR assay amplifying all species including T. vivax to a comparable extent using a single primer pair, and the potential of the essay to be used as a suitable diagnostic tool is discussed.

TL;DR: One in each five dogs infested by the brown dog tick, with anemia or thrombocytopenia, or ticks presented to a Veterinary Teaching Hospital in South Brazil had ehrlichosis, contrary to widespread believe.

TL;DR: This study showed that D. flagrans, fed daily to grazing ewes, was an effective biological control agent in reducing a predominantly H. contortus larval population on pasture.

TL;DR: The results show that the structural ribosomal protein S20 (RPS20) and the translation elongation factor 1alpha (eEF1alpha) are valid as reference genes showing less than two fold variation in transcript levels, and 18S RNA, although constitutively expressed, is not a convenient reference gene for relative quantification of most transcripts.

TL;DR: The data from this estate may represent, therefore, the baseline, the lowest possible levels to be expected, for Cryptosporidium infection and oocyst production on a lowland farm in the United Kingdom.

TL;DR: It was demonstrated that the impact of gastrointestinal (GI) parasitism varied between years and that the level of overwintering contamination is important but likewise, is unpredictable and adequate parasite control may be achievable without the use of anthelmintics.

TL;DR: Results suggest that utilization of S. anthelmia extracts may be useful in the control of sheep and goats gastrointestinal nematodes.

TL;DR: There was no strong evidence from this survey that any of the management practices examined greatly affected TBZ resistance, but there were both farm locality and regional variations in the percentage of resistant farms.

TL;DR: The results indicate that T. callipaeda is not confined to Eastern Europe and Asia, but that it has spread to the Old Continent, and to both Northern and Southern Italy.

TL;DR: A national necropsy survey of red foxes was carried out across Great Britain to record Echinococcus, Trichinella and Toxoplasma, and the second occurrence of Trichuris vulpis in Great Britain is reported.