i
Identification of Melioidosis Outbreak by Multilocus Variable Number Tandem Repeat Analysis
-
Feb 2009
-
-
Source: Emerg Infect Dis. 15(2):169-174.
Details:
-
Alternative Title:Emerg Infect Dis
-
Personal Author:
-
Description:Endemic melioidosis is caused by genetically diverse Burkholderia pseudomallei strains. However, clonal outbreaks (multiple cases caused by 1 strain) have occurred, such as from contaminated potable water. B. pseudomallei is designated a group B bioterrorism agent, which necessitates rapidly recognizing point-source outbreaks. Pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST) can identify genetically related isolates, but results take several days to obtain. We developed a simplified 4-locus multilocus variable number tandem repeat analysis (MLVA-4) for rapid typing and compared results with PFGE and MLST for a large number of well-characterized B. pseudomallei isolates. MLVA-4 compared favorably with MLST and PFGE for the same isolates; it discriminated between 65 multilocus sequence types and showed relatedness between epidemiologically linked isolates from outbreak clusters and between isolates from individual patients. MLVA-4 can establish or refute that a clonal outbreak of melioidosis has occurred within 8 hours of receipt of bacterial strains.
-
Subjects:
-
Source:
-
Document Type:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type: