Variable-number tandem-repeat markers for typing Mycobacterium intracellulare strains isolated in humans.

Background: Mycobacterium intracellulare, a species of the Mycobacterium avium complex, may be the cause of severe lung, lymphatic node, skin and bone/joint infections, as well as bacteriemia. The goal of this work was to identify Mycobacterial Interspersed Repetitive Unit-Variable Number Tandem Repeat (MIRU-VNTR) markers and to study their variability in a collection of isolates of M. intracellulare collected in humans.

Tsukamurella tyrosinosolvens--an unusual case report of bacteremic pneumonia after lung transplantation.

Background: Lung transplant recipients have an increased risk for actinomycetales infection secondary to immunosuppressive regimen.

Case Presentation: A case of pulmonary infection with bacteremia due to Tsukamurella tyrosinosolvens in a 54-year old man who underwent a double lung transplantation four years previously is presented.

Conclusion: The identification by conventional biochemical assays was unsuccessful and hsp gene sequencing was used to identify Tsukamurella tyrosinosolvens.