Association between the severity of histopathological lesions and Mycobacterium avium subspecies paratuberculosis (MAP) molecular diversity in cattle in southern Chile oleh Cristobal Verdugo, Cristobal Verdugo, Diego Marquez, Diego Marquez, Enrique Paredes, Manuel Moroni, María José Navarrete-Talloni, Camilo Tomckowiack, Miguel Salgado