12.What stage begins when the more specific signs and symptoms appear? b.illness stage C. convalescence stage b.prodromal stage d. incubation 13.What term that means state of being subject to death? 3. disease b.mortality C. morbidity d. illness 14.What kind of infection in one or both of the lungs? B.bronchitis b.HIV c. dengue d. pneumonia 15. What is the medical term of the inflammation of the bronchial tubes? a.bronchitis b.HIV c. dengue d. pneumonia