Accidental self inoculation with oil based veterinary vaccines

Area of Science:

• Veterinary Medicine
• Immunology
• Dermatology

Background:

• Oil-based adjuvants are common in veterinary vaccines.
• Self-inoculation with vaccines can occur inadvertently.

Observation:

• Three cases of adverse local effects from self-inoculation with oil-based veterinary vaccines were reported.
• Reactions included chronic granulomatous inflammation, sterile abscess formation, and the need for surgical intervention.

Findings:

• Mineral oil in veterinary vaccines can elicit prolonged granulomatous reactions and sterile abscesses.
• Intramuscular injection led to extensive thigh inflammation, while subcutaneous injections caused hand abscesses.
• Treatment involved surgical debridement, drainage, and corticosteroids.

Implications:

• Healthcare providers should be aware of potential severe local reactions from oil-based veterinary vaccines.
• Prompt diagnosis and management, including surgical debridement and corticosteroids, are crucial for preventing chronic sequelae.
• Proper handling and administration of veterinary vaccines are essential to prevent accidental self-inoculation.