Lesson 1
Lesson 1 Theme. Measles. Rubella. nChicken pox. Herpes Zoster MEASLES an acute communicable disease, is characterized by nthree stages: (1) an incubation stage of approximately 10–12 days with few, if any, nsigns or symptoms; (2) a prodromal stage with an enanthem (Koplik spots) on the nbuccal and pharyngeal mucosa, slight