问题
单项选择题
A client with hepatitis A expresses concern that his friends may also acquire hepatitis. Which of the following is most commonly used for prophylactic treatment of people exposed to hepatitis A
A．Penicillin.
B．Sulfadiazine (Microsulfon).
C．Immune serum globulin.
D．Interferon.
答案
参考答案：C
解析：Immune serum globulin is administered prophylactically to people exposed to hepatitis A. Hepatitis A vaccine (Vaqta) may be used in conjunction with immune globulin for immediate and long-term protection.