Llving the best comprehensive long-term protection itbody) AND cell-mediated (T

Question

Llving the best comprehensive long-term protection itbody) AND cell-mediated (T cell) 44. Toxoids are used in vaccines against A. Haemophilus influenza type b. D B. diphtheria. O C. herpes simplex type I.D D. polio. E. diphtheria AND herpes simplex type I 45. Injection of a single antigen usually results in production of 13 A. antibody to a single epitope.3 B. an antibody that recognizes several epitopes.D C. additional antigen.D D. a number of antibodies each recognizing a different epitope. 46. What would be a primary advantage of passive immunity with disenses such as tetanus or botulism? A. Cost. It's far cheaper to administer a dose of antibodies harvested from the serum of an actively immunized animal or human than it is to administer a vaccine. B. Safety of delivery. It's far safer to administer a dose of antibodies harvested from the serum of an actively immunized animal or human than it is to administer a vaccine. C. Time. You can quickly neutralize the toxin with a passive administration of antibodies to save the patient's life when none is available for them to make their own active immune response. D. Handling of treatment. It's difficult to keep vaccines stored properly to keep their potency, especially in Third World countries without adequate "cold chains" for transport into jungles and deserts. It's much easier to keep a batch of antibodies stable, even in extremes of heat and humidity. 47. Inactivated vaccines typically require booster shots. D A. true B. false Epidemiology Ch. 19 48. When an infectious disease cannot spread in a population because it lacks a significant number of susceptible hosts, the phenomenon is referred to as A. protected population. B. active immunity.D C. passive immunity.D D. herd immunity 49. Diseases constantly present in a population are called O A. epidemic.!D B. chronic. C. latent. D. endemic. E. latent

Explanation / Answer

44.diptheria

45.a number of antibodies each recognizing a different epitopes.

46.it is cost effective

47.True.

48.Herd immunity

49.Endemic(D)

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