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Herpes simplex infection simulating a positive auto-inoculation for Haemophilus ducreyi
Acta Dermato-Venereologica
|January 1, 1982
Summary
Auto-inoculation from genital ulcers can mimic Haemophilus ducreyi infection. Herpes simplex virus type 2 was identified, suggesting a shorter incubation period than typically observed.
Area of Science:
- Dermatology
- Virology
- Infectious Diseases
Background:
- Genital ulcers are common and can be caused by various pathogens.
- Accurate diagnosis is crucial for effective treatment and preventing transmission.
- Auto-inoculation is a diagnostic technique used for certain bacterial infections.
Observation:
- A patient presented with a genital ulcer, and auto-inoculation was performed.
- Redness appeared at the auto-inoculation site within 24 hours.
- Vesicles and pustules developed by 48 hours.
Findings:
- Herpes simplex virus type 2 (HSV-2) was confirmed via cultivation from the auto-inoculation site.
- The clinical presentation mimicked ulcus molle (chancroid).
- The observed incubation period for HSV-2 was shorter than the commonly cited 4-5 days.
Implications:
- Auto-inoculation may not be specific for Haemophilus ducreyi and can be mimicked by herpes simplex virus.
- This case highlights the possibility of a shorter HSV incubation period.
- Clinicians should consider HSV in the differential diagnosis of genital ulcers presenting with rapid auto-inoculation findings.