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Home Q & A Board Biology-Related Homework Help Cell Biology
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Sonikapardal Sonikapardal
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6 years ago
The Salk vaccine
 
  A. protects against nervous system and gastrointestinal infection.
  B. protects only against gastrointestinal infection.
  C. is a subunit vaccine.
  D. protects only against nervous system infection.
  E. protects against nervous system and gastrointestinal infection AND is a subunit vaccine.


Inactivated immunizing agents are prepared by treatment with
 
  A. alcohol.
  B. phenol.
  C. formalin.
  D. histamine.


Attenuated agents are
 
  A. dead viruses.
  B. toxins.
  C. weakened but replicating microbes.
  D. parts of an organism.


Attenuated agents
 
  A. may induce immunity after a single dose.
  B. may cause disease in immunocompromised individuals.
  C. multiply in the body.
  D. may revert or mutate to disease-causing strains.
  E. All of the choices are correct.


Which antibodies cross the placenta and protect the fetus?
 
  A. IgA
  B. IgG
  C. IgM
  D. IgD
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gregbren89@gmaigregbren89@gmai
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6 years ago
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Sonikapardal Author
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6 years ago
Great answers
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