Measles is a highly contagious viral disease characterized by a clinically distinct prodrome of fever, coryza, conjunctivitis, cough, and a pathognomic exanthem (Koplik`s spots). The rash of Measles appears after a 3- to 5-day prodrome, some 14 days after exposure, and may be associated with skin edema. The disease results from infection with the Measles Virus, genus Morbillivirus of the family Paramyxoviridae. Complications are otitis media, pneumonia, and encephalitis.

Measles has a more severe expression in younger or undernourished children with a higher incidence of hemorrhage Measles, with 5 % to 10 % of lethal cases. Measles is one of the most contagious infectious diseases. The virus spreads through droplets emanating from the respiratory tract of infected persons or by direct contact. The incidence of Measles has declined since the introduction of vaccination programs