Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link
Volume 16, Number 6—June 2010
Letter

Increasing Incidence of Nontuberculous Mycobacteria, Taiwan, 2000–2008

On This Page
Article Metrics
7
citations of this article
EID Journal Metrics on Scopus

Cite This Article

To the Editor: Lai et al. (1) reported an increase in the number of nontuberculous mycobacteria (NTM) isolates and patients with pulmonary NTM diseases after implementation of the BACTEC system (Becton Dickinson, Sparks, MD, USA) late in 2001. These authors also reported that the increase was mainly in persons infected with Mycobacterium avium complex (MAC) and M. abscessus. They stated that diseases caused by NTM were defined according to current diagnosis criteria published in 2007 (2). This finding suggests that Lai et al. were able to review the clinical and radiologic information for all patients.

We wonder whether they were also able to identify and exclude people with NTM colonization, i.e., persons with positive cultures for NTM who did not meet the American Thoracic Society disease criteria. It would have been interesting to know the trend in colonized persons. In a previous study from British Columbia (3), we found an increase in the number of NTM isolates mostly in persons with MAC colonization. This finding coincided with implementation of a new laboratory technique in 2000, which suggested that the new technology is more sensitive in detecting MAC. In contrast with the findings of Lai et al., our study from British Columbia showed that the incidence in patients treated for NTM pulmonary disease (the group used as a surrogate of NTM disease) has been decreasing over time, which is reassuring.

Top

Eduardo Hernández-GarduñoComments to Author  and R. Kevin Elwood
Author affiliations: British Columbia Centre for Disease Control, Vancouver, British Columbia, Canada

Top

References

  1. Lai  CC, Tan  CK, Chou  CH, Hsu  HL, Liao  CH, Huang  YT, Increasing incidence of nontuberculous mycobacteria, Taiwan, 2000–2008. Emerg Infect Dis. 2010;16:2946.PubMedGoogle Scholar
  2. Griffith  DE, Aksamit  T, Brow-Elliott  BA, Catanzaro  A, Daley  C, Gordin  F, An official ATS/IDSA statement: diagnosis, treatment, and prevention of nontuberculous mycobacterial diseases. Am J Respir Crit Care Med. 2007;175:367416 .DOIPubMedGoogle Scholar
  3. Hernández-Garduño  E, Rodrigues  M, Elwood  RK. The incidence of pulmonary non-tuberculous mycobacteria in British Columbia, Canada. Int J Tuberc Lung Dis. 2009;13:108693.PubMedGoogle Scholar

Top

Cite This Article

DOI: 10.3201/eid1606.100228

Related Links

Top

Table of Contents – Volume 16, Number 6—June 2010

Comments

Please use the form below to submit correspondence to the authors or contact them at the following address:

Eduardo Hernández-Garduño, Department of Tuberculosis Control, British Columbia Centre for Disease Control, 1063-655 W 12th Ave, Vancouver, British Columbia V5Z 4R4, Canada

Send To

10000 character(s) remaining.

Top

Page created: February 14, 2011
Page updated: February 14, 2011
Page reviewed: February 14, 2011
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
file_external