Measles is an infectious disease of viral etiology, highly contagious, sometimes severe, caused by measles virus, characterized by high fever, cough, and runny nose and rash. This is one of eruptive diseases, contagious childhood. The disease is most severe in infants and young children with pulmonary complications and mortality quite high. Monthly and seasonal curve shows a peak incidence of measles in the spring months (April-May) and a minimum in August and September. Sources of infection are formed only by the sick man with typical or atypical
The allergic reaction is the body’s response to a foreign substance perceived as dangerous called allergen.
Daily inspiration, ingest or touch allergenic, without realizing it, because they are usually harmless. But if the immune system identifies pollen, animal dander and other antigens harmless substances as dangerous, it can trigger an allergic reaction.