Search results - 10 results
Genetically stable infectious Schmallenberg virus persists in foetal envelopes of pregnant ewes.
foetal envelopes is genetically stable since only a few mutations compared to the inoculum were found. This supports the hypothesis that persisting virus could start the infection of new hosts. Finally, ...
Experimental bluetongue virus superinfection in calves previously immunized with bluetongue virus serotype 8.
non-vaccinated group of calves were challenged twice (4 months apart) with the European BTV8 strain isolated during the 2006-2007 epidemics. Calves were then infected with a BTV1 inoculum which was found to be ...
Next-generation sequencing shows West Nile virus quasispecies diversification after a single passage in a carrion crow (Corvus corone) in vivo infection model.
introduced errors. The WNV populations in the wild crows showed significant diversification away from the inoculum virus quasispecies structure. By contrast, WNV populations in intracerebrally infected day-old ...
Full-Genome Sequencing of Four Bluetongue Virus Serotype 11 Viruses.
Serogroup Sheep Vaccination Viral Vaccines Abstract: Recently, a contamination incident was described in which the challenge inoculum used in a bluetongue virus serotype 8 (BTV-8) vaccination trial was ...
Experimental co-infections of calves with bluetongue virus serotypes 1 and 8.
the development of viraemia and high titres of anti- BTV-1 neutralizing antibodies proved that the inoculum was infectious and the detection protocols were efficient. Several hypotheses could explain ...
Characterization of cultures enriched from acidic polycyclic aromatic hydrocarbon-contaminated soil for growth on pyrene at low pH.
Pollutants Abstract: Two polycyclic aromatic hydrocarbon (PAH)-contaminated soils of pH 2 were successfully used as inoculum to enrich cultures growing on phenanthrene and pyrene at different pHs, including pH ...
Ochratoxin A and citrinin loads in stored wheat grains: impact of grain dust and possible prediction using ergosterol measurement.
describes the results obtained using a lab model developed in order to assess the impact of grain dust incorporation for its direct contribution as a contaminant but also as an inoculum in stored wheat. ...
Molecular study of the quasispecies evolution of a typical pigeon paramyxovirus type 1 after serial passages in pigeons by contact.
from the organ and targeting the P and HN genes of the virus. The viral diversity following in vivo passage was found to be different from that in the inoculum, but demonstrated the reality of the ...
Effect of disinfection of drinking water with ozone or chlorine dioxide on survival of Cryptosporidium parvum oocysts.
infection level of 1,000 oocysts (0.1-ml inoculum) per mouse was necessary to induce 100% infection. Treatment of water containing 10(4) oocysts per ml with 1.11 mg of ozone per liter (concentration at time ...
Experimental transmission of enzootic bovine leukosis to cattle, sheep and goats: infectious doses of blood and incubation period of the disease.
A given inoculum can be infectious in sheep and, at the same time, harmless in cattle. The incubation periods, apparently shorter in sheep, were generally in the range from 2 to 5 weeks for the three ...