Epic Sigma chapter 20-21 Cross word puzzle

12345678910111213141516
Across
  1. 5. rare infection of the brain
  2. 6. SPREAD OF STDS
  3. 7. proteins that are made when the immune system prepares to attack an infectious agent in the body
  4. 8. virus that primarily infects cells of the immune system
  5. 9. occurrence of more cases of a diseases than expected
  6. 12. disease caused by the HIV infection which weakens the immune system
  7. 13. disease that spreads quickly through human populations all over the world
  8. 15. measure of the number of viruses in the blood
  9. 16. infection in which the infectious agent is present but thereare few or no symptoms of the infection
Down
  1. 1. illness due to organism that causes disease in people with weakened immune system
  2. 2. showing no signs of a disease even though an infection or disease is present
  3. 3. the act of refraining from indulging to a desire
  4. 4. infectious diseases that are spread by sexual contact
  5. 10. extremely important for both the mother and baby
  6. 11. test that measures the number of helper T cells in the blood
  7. 14. white blood cells that activate the immune response