Abstract:
:Community-acquired bloodstream infections cause substantial morbidity and mortality worldwide, but microbiology capacity and surveillance limitations have challenged good descriptions of pathogen distribution in many regions, including Southeast Asia. Active surveillance for bloodstream infections has been conducted in two rural Thailand provinces for >7 years. Blood specimens were divided into two culture bottles, one optimized for aerobic growth (F bottle) and a second for enhanced growth of mycobacteria (MB bottle), and processed with the BactT/Alert 3D system. Because the routine use of MB culture bottles is resource intensive (expensive and requires prolonged incubation), we assessed the added yield of MB bottles by comparing the proportion of pathogens detected by MB versus that by F bottles from 2005 to 2012. Of 63,066 blood cultures, 7,296 (12%) were positive for at least one pathogen; the most common pathogens were Escherichia coli (28%), Burkholderia pseudomallei (11%), Klebsiella pneumoniae (9%), and Staphylococcus aureus (6%). Two bottles improved the yield overall, but the added yield attributable to the MB bottles was limited to a few pathogens. In addition to the detection of mycobacteria and some fungi, MB bottles improved the detection of B. pseudomallei (27% [MB] versus 8% [F]; P < 0.0001), with added benefit if therapy was initiated prior to the blood culture. The targeted use of MB bottles is warranted for patients at risk for mycobacterial and fungal infections and for infection with B. pseudomallei, a common cause of septicemia in Thailand.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Jorakate P,Higdon M,Kaewpan A,Makprasert S,Yuenprakhon S,Tawisaid K,Dejsirilert S,Whistler T,Baggett HCdoi
10.1128/JCM.02008-14subject
Has Abstractpub_date
2015-03-01 00:00:00pages
910-4issue
3eissn
0095-1137issn
1098-660Xpii
JCM.02008-14journal_volume
53pub_type
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