Pathogens May Be Attenuated for Use in Vaccines by

question 30

Multiple Choice

Pathogens may be attenuated for use in vaccines by

• A) raising the pathogen for several generations in tissue culture cells.
• B) genetic manipulation.
• C) treatment with formaldehyde.
• D) genetic manipulation coupled with treatment with formaldehyde.
• E) genetic manipulation and/or raising the pathogen for several generations in tissue culture cells.

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