Which of the following agents can activate protective active immunization?
A. Toxoid
B. Kiled microbes;
C. Human immune globlin;
D. Bacterial Capsule;
查看答案
Which of the following choices are properties of the active immunization?
A. It can induce antibody secretion;
B. It can provide immediate protection;
C. It can provide long term protection;
D. It is induced by vaccine injection
Toxoid can induce production of antitoxin in a host.
A. 对
B. 错
Passive immunotherapy provides more prolonged immunity than active immunization.
A. 对
B. 错
It is standard to attenuate killed virus vaccines.
A. 对
B. 错
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