Species which are pathogenic to dogs include:
- Cuterebra emasculator
The life cycle involves eggs laid near where dogs reside. Eggs hatch and first stage larvae attach to the dog coat, where they burrow into the nose, ears and eyes and feed off dermal secretions caused by the larvae migrating on the skin. In dogs, they are usually found in subcutaneous connective tissue, where they cause myiasis. In rare cases, they may migrate from the frontal sinuses into the brain.
Seizures associated with penetration of the skull are rare, but stupor, disorientation, blindness, tetraparesis and circling are frequently observed with cerebral cuterebral meningitis and encephalitis.
Treatment involves mechanical removal of larvae and application of topical insecticides. Secondary bacterial infections with Staphylococcus spp and Streptococcus spp is common, and antimicrobial therapy is usually indicated.
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