Volume 100, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



Bloodstream infection surveillance conducted from 2008 to 2014 in all 20 hospitals in Sa Kaeo and Nakhon Phanom provinces, Thailand, allowed us to look at disease burden, antibiotic susceptibilities, and recurrent infections caused by extended-spectrum β-lactamase (ESBL)–producing and . Of 97,832 blood specimens, 3,338 were positive for and 1,086 for . The proportion of isolates producing ESBL significantly increased from 19% to 22% in 2008–2010 to approximately 30% from 2011 to 2014 (-value for trend = 0.02), whereas ESBL production among cases was 27.4% with no significant trend over time. Incidence of community-onset ESBL-producing increased from 5.4 per 100,000 population in 2008 to 12.8 in 2014, with the highest rates among persons aged ≥ 70 years at 79 cases per 100,000 persons in 2014. From 2008 to 2014, community-onset ESBL-producing incidence was 2.7 per 100,000, with a rate of 12.9 among those aged ≥ 70 years. Although most (93.6% of and 87.6% of ) infections were community-onset, hospital-onset infections were twice as likely to be ESBL. Population-based surveillance, as described, is vital to accurately monitor emergence and trends in antimicrobial resistance, and in guiding the development of rational antimicrobial therapy recommendations.

[open-access] This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


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  • Received : 08 May 2018
  • Accepted : 17 Dec 2018
  • Published online : 18 Feb 2019

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