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Entre los nacidos en Estados Unidos, la enfermedad se deriva a menudo de una infección reciente, mientras que en el caso de extranjeros se trata generalmente de casos en que la infección se ha actividad después de estar latente mucho tiempo.
Los autores opinan que, dado que los esfuerzos de salud pública se han centrado en tratar los nuevos casos de infección en vez de prevenir la activación de los casos latentes, el cribado de la tuberculosis y el tratamiento preventivo a los inmigrantes podría conducir a importantes descensos en la incidencia de la enfermedad.
Webs Relacionadas
New England Journal of Medicine
http://content.nejm.org/