Mortality rate of measles in developing countries-

Ans. is 'a' i.e., 10% o Measles-associated mortality is usually higher among the very' young and very old.o Mortality in developing countries may be as high as 10 to 15% due to one or several factors, including the early age of infection, malnutrition, diarrhea, concomitant-secondary bacterial infections, and lack of access to good medical care.o Most common cause of death is pneumonia in children and encephalitis in adults.