vaccines

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Across
  1. 3. Inject with a vaccine for the purpose of inducing immunity
  2. 5. A research study in which one or more human subjects are prospectively assigned to one or more interventions to evaluate the effects
  3. 7. is the probability that a vaccine confers immunity in a populatio
Down
  1. 1. is a biological preparation that improves immunity to a particular disease
  2. 2. Any accompanying or consequential and usually detrimental effect
  3. 4. Help vaccines work better
  4. 6. The act of putting a liquid, especially a drug, into a person's body using a needle and a syringe
  5. 8. The body's response mechanism for fighting against bacteria, viruses and other foreign substances