[Description of 2 new enzymatic bio-varieties of Mycobacterium tuberculosis]. / Descripción de dos nuevas biovariedades enzimáticas de Mycobacterium tuberculosis.

Biovarieties of M. tuberculosis were studied in 736 isolates. Most of them were classified into the well known varieties but two were considered as new varieties nominated H and I. Variety H has valine and cystine aminopeptidases, is active also against trypine, and contains alpha glucosides. Variety I contains the enzymes plus alfa glucosidase.