Directions: Fill in the boxes with the appropriate letters to complete the words referred to by the clues given across and down.
Across: 1. a sign of the existence of something 5. process of making impure by polluting 7. disinfect 9. microscopic infective agent 10. tending to move about frequently 13. improved further 14. showing no symptoms Down: 2. found over a large area 3. sickness, illness 4. group of people living in the same place 6. widespread 8. state of separating people with infectious disease 11. return to a normal state of health 12. separation/segregation​
