MR-December

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Across
  1. 2. Common viral infection, flu for short
  2. 3. Branch of medicine that treats the skeletal system and associated structures
  3. 4. A respiratory condition made worse by air pollution
  4. 5. An essential part of hygiene, especially before eating, to avoid infections
Down
  1. 1. Condition that causes uncomfortable, difficult and infrequent bowel movements
  2. 6. An STD caused by HIV