
Roseola vaccinia
    
    Encyclopedia
    
        Roseola vaccinia is a cutaneous condition characterized by a prominent rim of erythema
surround the site of vaccination
injection.
Erythema
Erythema  is redness of the skin, caused by hyperemia of the capillaries in the lower layers of the skin. It occurs with any skin injury, infection, or inflammation...
surround the site of vaccination
Vaccination
Vaccination is the administration of antigenic material  to stimulate the immune system of an individual to develop adaptive immunity to a disease.  Vaccines can prevent or ameliorate the effects of infection by many pathogens...
injection.

