MCF Flashcards
What is Malignant catarrhal fever (MCF)
- A sporadic, usually fatal, multisystemic viral disease of cattle, deer, bison, and certain exotic ruminants
- characterized in cattle by profuse mucopurulent nasal and ocular discharges, keratoconjunctivitis with corneal opacity, and enlargement of peripheral ln
Taxonomy of MCFV?
- Family: Herpesviridae
- Subfamily: gammaherpesvirinae
- Genus: Macavirus
What are the characteristics of MCFV?
- dsDNA genome
- Enveloped
- Icosahedral symmetry
- cause lymphoproliferative disease (gamma-herpesviruses)
What are the subgroups of MCF and their hosts?
- OvHV-2 - sheep
- AIHV-1 - Wildebeest
- AIHV-2 - Hartebeest, topi
- CpHV-2 - Goat
What is the history of MCF?
- Known in cattle in africa for centuries
- Sheep associated form occurs world-wide
- First reports of MCF-like disease in US cattle dates back to 1920s
- First bison case in US reported in 1873
What species are affected by MCF?
- Domestic cattle
- American Bison
- Several species of Cervidae
- Buffalo
- Several wildlife ruminants
How is MCF transmitted?
How does MCF transmission occur in carrier species?
How is MCF transmitted in susceptible species?
What is the Incubation period, morbidity, mortality and duration of MCF?
What is the pathogenesis of MCF
WHat are the clinical signs of MCF
What gross lesions are common to MCF
What are the different forms of MCF?
What happens in the peracute and Head and eye forms of MCF?
What are the Intestinal and Mild forms of MCF like?
How is MCF diagnosed?
What serology tests are available for MCF
- Virus neutralization (VN)
- Immunobloting
- ELISA 9cELISA)
- IFA
What samples should be taken for histopathology in MCF?
What are common microscopic lesions with MCF?
What is needed for PCR for MCF
What is needed for Virus Isolation diagnosis of MCF?
What are the differential dx for MCF in cattle?
DDx for MCF in cervids?