Ovine Pulmonary Adenomatosis

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Ovine Pulmonary Adenomatosis

Which virus of small ruminants is abbreviated OPA, is a retrovirus, RNA and enveloped, not zoonotic, cannot be isolated in culture, and causes production of surfactant in the lungs, blocking the airways?

<p>Which virus of small ruminants is abbreviated OPA, is a retrovirus, RNA and enveloped, not zoonotic, cannot be isolated in culture, and causes production of surfactant in the lungs, blocking the airways?</p>
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Retroviridae

What viral family includes the OPA virus?

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RNA

Is the OPA virus RNA or DNA?

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Enveloped

Is the OPA virus enveloped or naked?

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Surfactant

OPA causes disease by causing the production of large amounts of what substance by tumor cells it forms? This blocks the small airways and causes death by anoxia and secondary bacterial pneumonia, leading to fever. Adenomas and adenocarcinomas normally pea-sized are seen in the lungs.

<p>OPA causes disease by causing the production of large amounts of what substance by tumor cells it forms? This blocks the small airways and causes death by anoxia and secondary bacterial pneumonia, leading to fever. Adenomas and adenocarcinomas normally pea-sized are seen in the lungs.</p>
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Wheelbarrow

What test for clinical signs is done to help diagnose OPA? Ultrasound helps look for nodules and histopathology are used, while PCR is not sensitive due to the high mutation rate.

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No

Is there a vaccine for OPA?

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Yes

Can the OPA virus be spread through saliva/respiratory secretions, and milk?