PubMed Health⌕ Search

Biomedical subjects

M L Frey

Publications and source records attributed to M L Frey.

At least 37 records · Page 2Linked to original sources
PubMed1986

Serologic survey of selected pathogens in white-tailed and mule deer in western Nebraska.

Exposure of free-ranging white-tailed deer (Odocoileus virginianus) and mule deer (Odocoileus hemionus) in western Nebraska to selected livestock pathogens was determined by serology and attempted virus isolation. Antibodies to bluetongue virus, epizootic hemorrhagic disease virus, and bovine respiratory syncytial virus were present in both species of deer. No serologic reactors to Brucella or Anaplasma were found. Attempts to isolate bluetongue virus were negative.

Age Factors↗
PubMed1985

Bovine respiratory syncytial virus.

The current knowledge is reviewed in regards to the importance of bovine respiratory syncytial virus in the bovine respiratory disease complex. The epidemiology, clinical disease, pathologic findings, pathogenesis, diagnosis, treatment, and prevention of this viral disease are discussed.

Animals↗
PubMed1980

Identification and characterization of a bovine rhinovirus isolated from Iowa cattle with acute respiratory tract disease.

Viral isolate FS1-43 isolated from a calf with acute respiratory tract disease was characterized as a bovine rhinovirus. This virus was antigenically indistinguishable from rhinovirus strains C-07 and VC-96. The virus replicated in low passage Madin-Darby and Georgia bovine kidney cells. A relative noncytopathogenic replication occurred in epithelial bovine turbinate, bovine fibroblastic turbinate, and bovine lung cells. Ciliary activity of tracheal explants was unaffected during eight serial passages. Viral replication was detected earlier and viral titers were higher at 33 C than at 37 C. Rotation of cultures did not affect viral titers but was necessary to produce a cytopathic effect in Madin-Darby bovine kidney cells.

Animals↗
PubMed1975

Isolation, characterization, and pathogenicity studies of a bovine respiratory syncytial virus.

The isolation and characterization of a bovine respiratory syncytial (RS) virus is described. Serological studies indicate that bovine RS virus is widespread in Iowa cattle and that it is involved in some outbreaks of respiratory disease. Experimental infection in calves indicates that the virus can cause illness in calves, particularly those with serum neutralizing antibody.

Animals↗
PubMed1972

Chronological development of Mycoplasma hyorhinis and Mycoplasma hyosynoviae infections in cultures of a swine synovial cell strain.

The sequential development of Mycroplasma hyorhinis and Mycoplasma hyosynoviae was observed in cultures of a swine synovial fluid cell strain. An early transitory filamentous phase was observed with M. hyorhinis infection followed by the development of cell-associated, relatively large, round structures and some ring forms. Infection with M. hyorhinis was characterized by a generalized distribution of the organism and a severe cytopathic effect. Infection with M. hyosynoviae was represented by the development of circumscribed foci of small pleomorphic structures and a milder effect on the cells. At a high multiplicity of infection, this organism became associated with the cytoplasmic membranes of the cells.

Animals↗