Multiple Choice
Killed or inactivated vaccines are prepared by _______.
A) passage of the pathogen through unnatural hosts or tissue culture
B) removal of virulence genes from the microbe
C) treatment with formalin, heat, or radiation
D) long-term subculturing of the microbe
Correct Answer:
Verified
Correct Answer:
Verified
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Q65: Helper T cells _.<br>A) secrete antibodies<br>B) suppress
Q66: The immunoglobulin/s found on the surface of
Q67: An example of artificial passive immunity would
Q68: What type of cells secrete antibodies?<br>A) Plasma
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