The presente estudy aims to analyse measels cases in Londrina-PR, as well as to verify the costs of an interned patient and the costs of the vaccin in public health centers and private clinics. The data was collected at University Regional Hospital of Northen Paraná, Health State Secretary of Caetano Munhoz da Rocha Foundation and at a private Clinic, in January, 1989. It was concluded the measles is still and endemic disease in the Studied Region, having 11,9% of all cases need hospital internment. It was also observed that, considering the cost of one hospitalization in a period of six days, it would be possible to vaccinate 3144 children in public health centers and 94 children in private clinics.