Accidental implantation vaccinia - Smallpox Vaccination
Accidental (inadvertent) implantation can be by autoinoculation or contact with a recent vaccinee and may vary from single lesions to massive involvement of disruptive skin in patients with eczema, acne, skin disorders with open lesions and inflammatory eye diseases, especially those treated with steroids.
In individuals with cell-mediated immune defects, the implantation can be serious and life-threatening and lead to progressive vaccinia. Although no age group is spared, children are most susceptible to more extensive inoculations because of their propensity to scratch the vaccination site. Adults implant virus frequently on the face as a result of inadvertent contamination of the hands or via fomites.
T88.1XXA – Other complications following immunization, not elsewhere classified, initial encounter
409637001 – Inadvertent inoculation with vaccinia virus following contact with smallpox vaccination site
Differential Diagnosis & Pitfalls