Résultats de la recherche - 123 results

Enteritidis aroA mutant, and infection 1 day later with a virulent S. enterica serovar Enteritidis strain. These data were correlated with bacterial colonization and clearance of the Salmonella Enteritidis ...

came somewhat later, subsequently organising into follicular aggregates. An early increase in granulocytes was partly masked by the response to natural flora. While the B-lymphocyte and granulocyte ...

prevent transplacental transmission of CSF virus. In Belgium and The Netherlands pregnant sows were vaccinated once and challenged with virulent CSF virus 14 days later, which was around day 60 of ...

form of bovine viral diarrhoea virus (BVDV) infection appeared in North America. A similar but sporadic syndrome was later reported in Europe. To compare the pathogenic characters of the North American ...

chicks were BSA-immunised and Ig responses were measured for a longer period up to the age of 28 days. The IgG response of chicks immunised at 1 day of age was lower and occurred later (from 28 DPI) than ...

sheep were experimentally, infected with FMDV and one day later 4 other sheep were brought in contact. Although the contact sheep showed no clinical signs, serology indicated that all sheep became ...

with the other serovars, the bacteria appeared in most tissues 1 to 6 days later and the maximal replication in these tissues occurred 3 to 4 days later. Health Topics:  Animal health Category:  A1 FOS ...

whereas serum anti-C. parvum IgA levels peaked later than did local IgA levels. Challenge reinfection of naturally infected calves at day 112 was not followed by clinical signs or oocyst output or by ...

the IM x CK- MB assay on admission and 4 h later was superior to that of total CK activity and compared well with that of CK- MB activity measured by electrophoresis or immunoinhibition. An admission, ...

first 2 years of this phase, resistance to amikacin did not change significantly. Later, amikacin resistance rose significantly, mainly due to the introduction of amikacin-resistant Enterobacter aerogenes ...