Related Experiment Video
Updated: Feb 15, 2026

Cultivation Methods of Spirochetes from Borrelia burgdorferi Sensu Lato Complex and Relapsing Fever Borrelia
Published on: November 25, 2022
Q fever: a new ocular manifestation
P Udaondo1, S Garcia-Delpech, D Salom
1Department of Ophthalmology, Nuevo Hospital Universitario y Politecnico La Fe, Valencia, Spain.
Q fever, a rare zoonotic infection, can cause severe ocular issues mimicking Vogt-Koyanagi-Harada syndrome. Prompt doxycycline treatment led to complete vision recovery in a recent case.
Area of Science:
- Ophthalmology
- Infectious Diseases
- Immunology
Background:
- Q fever is a zoonotic illness caused by Coxiella burnetii.
- Ocular manifestations of Q fever are uncommon, making diagnosis challenging.
Observation:
- A patient presented with severe retro-orbital headache, fever, arthralgia, and bilateral vision loss.
- Ocular findings included anterior uveitis, exudative retinal detachment, and optic disc edema, initially suggesting Vogt-Koyanagi-Harada syndrome.
Findings:
- The patient was diagnosed with Q fever and treated with doxycycline.
- Complete resolution of ocular symptoms occurred within two weeks of treatment.
Implications:
- This case highlights that Q fever can present with ocular findings that mimic Vogt-Koyanagi-Harada syndrome.
- Further research is needed to understand the potential immunological mechanisms linking Q fever and VKH syndrome.
Related Concept Videos
Angina III: Clinical Manifestations and Assessment
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests
Types of Fever
Here are the different types of fever:
Patterns of Fever
Methods of reducing fever
Pharmacological Methods of Reducing Fever:
Acute Pancreatitis II: Clinical Manifestations and Management

