O comportamento do Mycobacterium lepraemurium nos testes de redução do azul de metileno e do tetrazólio / The behavior of \"Mycobacterium lepraemurium in tests to reduce the methylene blue and tetrazolium

ABSTRACT

Using M. lepraemurium suspensions obtained from leproma of rats inoculated by subcutaneous route or from nodules of the peritoneal cavity, the AA. have tested the capacity of these bacilli in reduce the methylene blue and formation of formazan from the tetrazolium. The time or intensity of reduction of methylene blue or formation of formazan are proportional to the concentration of bacilli in the suspensions and is increased with the storage in the refrigerator at 1øC. In comparison with tests perfomed upon other acid fast bacilli the ones with M. lepraemurium are developed very slowly.