health and hygien

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Across
  1. 4. providing or obtaining the food necessary for health
  2. 5. simple microorganism that infects cells and may cause disease
  3. 7. impure or polluted
  4. 9. common symptom for many diseases
Down
  1. 1. disease that is spread from one person to another
  2. 2. disease transported by mosquito
  3. 3. microorganisms that cause diseases
  4. 5. a treatment to strengthen our immunity
  5. 6. weakening of bones
  6. 8. damaging immune response by the body due to a substance