Serum from Guinea Pigs Injected with Less Than a Lethal

question 263

Multiple Choice

Serum from guinea pigs injected with less than a lethal dose of diphtheria toxin

• A) contains a factor that protects other guinea pigs from a lethal dose of the same toxin.
• B) contains a factor that protects other guinea pigs from a lethal dose of diphtheria toxin and a toxin from a different bacterium.
• C) contains a factor that protects other guinea pigs from a lethal dose of toxin from a different strain of diphtheria-causing bacteria.
• D) conveys active immunity to guinea pigs injected with it.
• E) conveys cellular immunity to guinea pigs injected with it.

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