Zoekresultaten - 53 results
Prevalence of enterotoxigenic Escherichia coli virulence genes from scouring piglets in Zimbabwe.
piggeries in Zimbabwe. We used multiplex PCR for screening ST a, ST b, LT, and Stx-2e toxins. Subsequently F4, F5, F6, F18 and F41 fimbriae genes were screened in toxin positive isolates. Toxin positive ...
Epidemiological study of bovine norovirus infection by RT-PCR and a VLP-based antibody ELISA.
diarrhoeic calves screened by RT- PCR. Nucleotide sequencing performed on the polymerase region classified all the norovirus amplicons in the bovine norovirus genotype 2. Rather surprisingly, some rotavirus ...
Humoral, cell-mediated and mucosal immunity induced by oculo-nasal vaccination of one-day-old SPF and conventional layer chicks with two different live Newcastle disease vaccines.
immunity was evaluated after oculo-nasal vaccination of day-old chickens. The preferential replication sites for each vaccine strain were investigated by screening different tissues using quantitative ...
Establishing the spread of bluetongue virus at the end of the 2006 epidemic in Belgium.
fitted in a Bayesian framework. Herd seroprevalence was estimated using a logistic regression model. To study the linear correlation between the BT winter screening data and the case-herds data, the linear ...
Microscopic and molecular studies of the diversity of free-living protozoa in meat-cutting plants.
sequencing of PCR-amplified, denaturing gradient gel electrophoresis (DGGE)-separated 18S rRNA gene fragments, which was used as a fast screening method. The general results of the survey showed that ...
An international inter-laboratory ring trial to evaluate a real-time PCR assay for the detection of bovine herpesvirus 1 in extended bovine semen.
a good substitute for the slow and laborious virus isolation, for the screening testing at artificial insemination centres and for international trade. Health Topics: Animal health Category: A1 FOS ...
Comparative evaluation of six ELISAs for the detection of antibodies to the non-structural proteins of foot-and-mouth disease virus.
sensitivity, but not necessarily for specificity. A commercial kit from Cedi-diagnostics and an in-house assay from IZS-Brescia were comparable to the NCP anaftosa-screening index method described in the ...
Characterisation of the discrepancy between PCR and virus isolation in relation to classical swine fever virus detection.
NS2, NS3 and NS5A regions. Screening of negative samples by virus isolation with the new panel not only confirmed the discrepancies previously observed but also indicated that these were not associated ...
The occurrence of encephalomyocarditis virus (EMCV) in European pigs from 1990 to 2001.
outbreaks were analysed and serum samples, partly from existing screening programmes, were tested for antibodies against EMCV. Most clinical EMCV outbreaks were reported in Belgium (320), followed by Italy ...
Highly pathogenic H5N1 influenza virus in smuggled Thai eagles, Belgium.
smuggled into Europe by air travel. A screening performed in human and avian contacts indicated no dissemination occurred. Illegal movements of birds are a major threat for the introduction of highly ...