Epidemiology of Vibrio parahaemolyticus Outbreaks, Southern Chile

Details

• Alternative Title:
  Emerg Infect Dis
• Personal Author:
  Harth, Erika ; Matsuda, Luis ; Hernández, Cristina ; Rioseco, Maria L. ; Romero, Jaime ; González-Escalona, Narjol ; Martínez-Urtaza, Jaime ; Espejo, Romilio T.
• Description:
  Disease outbreaks caused by Vibrio parahaemolyticus in Puerto Montt, Chile, began in 2004 and reached a peak in 2005 at 3,600 clinical cases. Until 2006, every analyzed case was caused by the serovar O3:K6 pandemic strain. In the summer of 2007, only 475 cases were reported; 73% corresponded to the pandemic strain. This decrease was associated with a change in serotype of many pandemic isolates to O3:K59 and the emergence of new clinical strains. One of these strains, associated with 11% of the cases, was genotypically different from the pandemic strain but contained genes that were identical to those found on its pathogenicity island. These findings suggest that pathogenicity-related genes were laterally transferred from the pandemic strain to one of the different V. parahaemolyticus groups comprising the diverse and shifting bacterial population in shellfish in this region.
• Subjects:
  Animals Disease Outbreaks Humans Molecular Sequence Data Polymerase Chain Reaction Sequence Analysis, DNA Serotyping Shellfish Vibrio Infections
• Source:
  Emerg Infect Dis. 15(2):163-168.
• Document Type:
  Journal Article
• Place as Subject:
  Chile
• Volume:
  15
• Issue:
  2
• Collection(s):
  Emerging Infectious Diseases
• Main Document Checksum:
  urn:sha256:d7197f37edb86ff529515a9ff6161e1e934eacc62bb339d801063af0b369caa4
• Download URL:
  https://stacks.cdc.gov/view/cdc/17057/cdc_17057_DS1.pdf
• File Type:
  [PDF - 197.41 KB ]