The patient has bite wounds most likely infected with Pasteurella multocida. Since the wounds were caused by dogs whose owners were unknown, the patient should also begin rabies prophylaxis (c). There is no need for varicella-zoster prophylaxis (e) since there is no history of shingles at this time. The patient is up to date on his tetanus immunization, so tetanus prophylaxis is not needed either (d). IV immunoglobulins (nonspecific) (b) are used to treat patients with IgG deficiency. Hepatitis B virus (HBV) prophylaxis is not needed unless the bites were inflicted by a human whose HBV status was unknown and could not be determined.