OPA sheep

What is the causative agent of Ovine pulmonary adenocarcinoma?

Beta retrovirus.

How is Ovine pulmonary adenocarcinoma transmitted?

Aerosol, colostrum/milk, via infective tumour fluid; the virus survives weeks in the environment.

What are common clinical signs of Ovine pulmonary adenocarcinoma?

Weight loss, increased respiratory rate and effort, cough, nasal discharge, and sudden death.

What diagnostic method is used to identify pulmonary tumours in Ovine pulmonary adenocarcinoma?

Thoracic ultrasound.

What is a confirmatory method for diagnosing Ovine pulmonary adenocarcinoma post-mortem?

Post-mortem examination to differentiate the diagnosis.

Is there a treatment available for Ovine pulmonary adenocarcinoma?

No, there is no treatment available.

What is one preventive measure for Ovine pulmonary adenocarcinoma?

Only buy sheep from trusted sources.

How can biosecurity be increased to prevent Ovine pulmonary adenocarcinoma?

Increase boundary biosecurity.

What management practice should be employed regarding the age of sheep to reduce the risk of Ovine pulmonary adenocarcinoma?

Keep in single age groups and keep young sheep away from adults.

What management strategy can help reduce the close contact among sheep?

Reduce stocking density.