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5 Written questions

5 Matching questions

  1. synergism
  2. phenology
  3. active immunization
  4. retrospective study
  5. herd immunity
  1. a exposing susceptible individuals to antigens associated with an infectious disease process that do not cause the disease but rather induce an immune response that protects against subsequent infection
  2. b life cycle events triggered by environmental cues may be altered. trees "leaf out" earlier. spring arrives earlier in some places. flowers appearing out of season
  3. c Immunity in most of a population
  4. d the working together of two things (muscles or drugs for example) to produce an effect greater than the sum of their individual effects
  5. e study that begins with the identification of persons with the disease and a suitable comparison (control) group of persons without the disease, then compares the diseased and nondiseased with reguard to the frequency of exposure to study factor

5 Multiple choice questions

  1. An individual capable of transmitting an infectious agent to others during the incubation period of the disease
  2. a widespread outbreak of an infectious disease
  3. anything (a person or animal or plant or substance) in which an infectious agent normally lives and multiplies
  4. reduced in strength
  5. primary prevention of infectious diseases by administering antimicrobial drugs to prevent infection

5 True/False questions

  1. acuteorganism that carries pathogens from person to person


  2. subclinicalbeing long-lasting and recurrent or characterized by long suffering adjective


  3. vectoran animal or plant that nourishes and supports a parasite


  4. chronic carrierbeing long-lasting and recurrent or characterized by long suffering adjective


  5. transovarial transmissionindirect transmission by a vector in which the infectious agent does not undergo physiologic changes inside the vector


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