B5 to B7 keywords

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Across
  1. 4. a protein produced by the immune system that binds to a specific antigen (a molecule on a pathogen like a virus or bacteria)
  2. 5. when a large percentage of a population is immune to a disease, making it difficult for the disease to spread
  3. 6. a carrier used to transfer genetic material (DNA) from one organism to another
  4. 7. when bacteria evolve mechanisms to withstand the effects of antibiotics, rendering the drugs ineffective in treating infections
  5. 8. a 'dummy' treatment with no medical or therapeutic value
  6. 9. drugs are tested using computer models and human cells grown in the laboratory.
Down
  1. 1. any illness that can be passed from one person or organism to another
  2. 2. a microorganism, such as a virus, bacterium, fungus, or protist, that can cause disease in a plant or animal
  3. 3. a biological preparation that provides active acquired immunity to a particular infectious disease
  4. 10. a toxin or other foreign substance which induces an immune response in the body, especially the production of antibodies.