Related Experiment Video
Updated: Oct 17, 2025

03:46
Author Spotlight: Coproparasitoscopic Examination of Dog Stools for Control and Prevention of Zoonotic Parasite Diseases
Published on: December 15, 2023
3.1K
Otobius megnini Infestation in Three Dogs
Stephen D White1, Kathryn V Scott2, John M Cheney3
1*Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, U.S.A.
Veterinary Dermatology
|October 14, 2021
Summary
Otobius megnini tick infestations in dogs can cause head-shaking. Prompt removal of ticks or using a thiabendazole-dexamethasone-neomycin otic preparation effectively resolved these canine ear infestations.
Area of Science:
- Veterinary Dermatology
- Parasitology
Background:
- Otobius megnini, commonly known as the spinose ear tick, can infest domestic animals.
- Canine ear conditions often present with non-specific signs like head-shaking.
Observation:
- Three dogs presented with clinical signs attributed to Otobius megnini infestation.
- Head-shaking was the primary presenting complaint in two dogs not on systemic corticosteroids.
Findings:
- Manual removal of ticks successfully treated two dogs.
- A third dog's infestation resolved with a thiabendazole-dexamethasone-neomycin otic preparation.
Implications:
- Early diagnosis and prompt treatment are crucial for managing Otobius megnini infestations in dogs.
- Combination otic preparations offer a viable therapeutic option for spinose ear tick cases.

