Which type of immune reaction is occurring in this picture of a horse with limb edema secondary to a localized vasculitis?
A - Cell-mediated immune reactions (Type IV)
B - Immediate hypersensitivity and atopy (Type I)
C - Antigen-antibody complex disease (Type III)
D - Antibody-mediated cytotoxic reactions (Type II)
E - None of these
answer/Antigen-antibody complex disease (Type III)
