Abortions in sheep may have other causes. When the diagnosis is in doubt or when sheep vaccinated with Mydiavac abort, it is strongly recommended that veterinary advice is sought.

The safety and efficacy of Mydiavac administered to pregnant sheep has been studied in challenge experiments. These studies have demonstrated the safety of this practice. A reduction in abortion and infection was evident in pregnant ewes challenged following vaccination and in pregnant ewes vaccinated after challenge. On the basis of this evidence, Mydiavac could be used as an aid in the control of Chlamydia psittaci infection, even in the face of an outbreak.

Unused product and/or containers should be disposed of in accordance with advice from a local waste disposal authority.