Camelid - Respiratory Dz Flashcards Preview

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Flashcards in Camelid - Respiratory Dz Deck (6)
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1

What disease syndromes are associated with BVDV infection in camelids?

- Diarrhoea.
- Ill thrift.
- Reproductive losses or congenital infection --> PI crias.
- Disseminated disease.

2

What is the period of susceptibility of camelid foetuses for induction of BVDV PIs?

Unknown, as the gestation period of camelids is much longer than cattle.

3

What methods can be used to diagnose BVDV infection in camelids?

- Virus isolation from LNs, blood, foetal tissues, placenta.
- PCR from whole blood.
- IHC on formalin fixed tissues.
- NB antigen-capture ELISA used in cattle can give false positive results.
- PI-specific assays used in cattle e.g. BVD viral antigen ELISAs on ear notches or serum have not been validated in camelids.

4

Is there a BVDV vaccine licensed for use in camelids?

No.
Use of cattle vaccines is not recommended as this is not a widespread problem in camelids.

5

Adenovirus-associated pneumonia has been reported in four camelids. What type of virus is this? What clinical signs and necropsy findings were reported?

- Double-stranded DNA virus.
- Bronchopneumonia, fibrinous pleuritis and peritonitis, chronic wasting, nasal discharge and lethargy.
- Inclusion bodies in liver and virus detected by fluorescent antibody testing in lungs.

6

What virus has been implicated (but not proven) to be the cause of acute respiratory syndrome in alpacas?

- A group 1 coronavirus.
- Mild to severe respiratory signs; interstitial pneumonia with lymphocytic infiltrates on post mortem exam.