suspected h. Change or cause to change in form or nature. 9. mutate i. Being able to be spread from one person or organism to another by direct or indirect contact. 10. contagious j. Make a disease or health problem leave someone's body. 11. pneumonia k. A physical or mental sign which shows you could have a disease or health problem. 12. symptom L. An infection caused by bacteria or a virus, in which the lungs fill with a liquid and may become solid. 13. cough m. Thought something was true, but without proof. 14. cure n. Air suddenly coming out of the lungs with a sharp sound.