Long distance spread of malignant catarrhal fever virus from feedlot lambs to ranch bison.

A devastating outbreak of malignant catarrhal fever in a bison feedlot.

In early 2003, an outbreak of malignant catarrhal fever (MCF) occurred in a bison feedlot in southern Idaho. The outbreak resulted in a 51.2% (n = 825) mortality rate among bison, which had been exposed to sheep for 19 days. Diagnosis was made by detection of ovine herpesvirus 2 (sheep-associated MCF virus) DNA in tissues or peripheral blood by polymerase chain reaction (PCR), and by histologic...

Malignant catarrhal fever in a bison (Bison bison) feedlot, 1993-2000.

A fatal enteric syndrome was identified in American bison (Bison bison) at a large feedlot in the American Midwest in early 1998. An estimated 150 bison died of the syndrome between January 1998 and December 1999. The syndrome was identified as malignant catarrhal fever (MCF), primarily the alimentary form. Clinical onset was acute, and most affected bison died within 1-3 days; none recovered. ...

A preliminary report on the isolation of bovine malignant catarrhal fever virus in Iran

Resistance to malignant catarrhal fever in American bison (Bison bison) is associated with MHC class IIa polymorphisms.

The Rhadinovirus ovine herpesvirus-2 (OvHV-2) is the most common causative agent of malignant catarrhal fever (MCF) in clinically susceptible ruminants including cattle and bison. American bison (Bison bison) are highly susceptible to clinical MCF. Nevertheless, approximately 20% of bison on ranches or in feedlots become infected with the virus without developing clinical disease. Defining the ...

Malignant Catarrhal Fever

Malignant Catarrhal Fever (MCF), a fatal disease of a large number of different ruminants, is caused by infection with either a blue or black wildebeest-associated alcephaline herpesvirus 1 (AlHV-1) or the sheep-associated ovine herpes virus 2 (OvHV-2).Wildebeest and sheep are the natural hosts of these viruses respectively. Both these forms of MCF are of great economic importance, particularly...