sciencetastic

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Across
  1. 5. a type of biological cell.
  2. 6. (of a disease) prevalent over a whole country or the world.
  3. 8. a substance used to stimulate the production of antibodies and provide immunity against one or several diseases,
  4. 10. ncludes white blood cells and organs and tissues of the lymph system, such as the thymus, spleen, tonsils, lymph nodes, lymph vessels, and bone marrow.
Down
  1. 1. one of the two cycles of viral reproduction
  2. 2. something like corona _______
  3. 3. a bacterium, virus, or other microorganism that can cause disease.
  4. 4. a widespread occurrence of an infectious disease in a community at a particular time.
  5. 7. s the protein shell of a virus, enclosing its genetic material.
  6. 9. one of the two cycles of viral reproduction