RESUMO
No hace mucho, José M. Fernández, en un interesante trabajo sobre relaciones entre alergia tuberculosa y lepra, después de definir las formas lepromatosas y tuberculoides de esta última, con sus características clínicas e inmunológicas, insiste sobre la constante positividad de la reacción favorable de la enfermedad de la reacción de Mitsuda en las formas tuberculoides, lo que implicaría la evolución favorable de le enfermedad en este grupo, y se explaya en consideraciones sobre la positividad de esta reacción en personas sanas, tanto para aquellas que han vivido en un ambiente con lepra, como aquellas que han estado siempre alejadas de él, en regiones o países donde la lepra es desconocida.
Assuntos
Antígeno de Mitsuda/administração & dosagem , Hanseníase , Hanseníase/diagnóstico , Hanseníase/prevenção & controle , Hanseníase/tratamento farmacológico , Vacina BCG/administração & dosagemRESUMO
Thirty one children of leper parents in the Santa Teresita Preventorium of Asunción, Paraguay, all of them free from leprosy, were vaccinated with BCG after X-ray chest examinations and tuberculin tests which proved positive in 77 per cent. Rosenthal's multipuncture method was used. Among 11, in whom the results of the Mitsuda test were unknown, 82 per cent proved Mitsuda-positive after the vaccination. In 80 per cent of the other 20 the Mitsuda test changed from negative to positive after the vaccination. The following conclusions are given: An antigenic relation between tuberculosis and leprosy does not appear likely. A tuberculous infection cannot be accepted as the cause of a positive Mitsuda reaction. BCG vaccination may change a Mitsuda reaction from negative to postive in 80 per cent of both tuberculin-anergic and allergic cases. This experience suggests the possibility of preventing leprosy by BCG, especially in persons living in an endemic environment, if leprologists accept that a positive Mitsuda reaction implies a relative immunity(AU)