Why Do We Fall Ill?

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Across
  1. 3. it is a retro virus that targets the human immune system
  2. 7. disease caused by the action of bacteria Vibrio Cholerae
  3. 8. process of introducing a weekend pathogen inside the body of the host for the production of antibodies
  4. 9. this immunity present right from the birth in body
  5. 10. disease in which fear from water develops
Down
  1. 1. disease that targets liver
  2. 2. disease caused by worm
  3. 4. defence system present in our body
  4. 5. disease which lasts for a long period of time
  5. 6. State of well being