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Sequence Type 631 Vibrio Parahaemolyticus, An Emerging Foodborne Pathogen In North America
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01/25/2017
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Source: J Clin Microbiol. 2017 Feb; 55(2): 645–648.
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Details:
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Journal Title:Journal of Clinical Microbiology
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Description:ibrio parahaemolyticus is the leading seafood-transmitted bacterial pathogen worldwide. It causes gastroenteritis and, rarely, lethal septicemia. The estimated 45,000 annual cases of foodborne V. parahaemolyticus infections in the United States are concerning because their incidences are rising despite control measures, in part due to the impact of changing climate on pathogen abundance and distribution (1; https://www.cdc.gov/vibrio/). Although the pandemic complex of strains of sequence type 3 (ST3) (serotype O3:K6) has dominated infections worldwide (2), in the United States and Canada, the most prevalent clinical strains are of ST36 (O4:K12), which recently spread from the Pacific into the Atlantic (3,–8).
Here we report that a new lineage of V. parahaemolyticus, identified as ST631, is rapidly emerging as the predominant pathogenic clade endemic to the Atlantic coast of North America (3, 4, 8). The first reported ST631 genome came from a clinical case that occurred in Louisiana in 2007 and was traced to oysters from Florida (8). In 2009, a second ST631 clinical isolate was reported in Prince Edward Island, Canada (O11:KUT) (4). From 2010 to 2015, the incidence of infections by strains of ST631 has increased, with 35 confirmed cases reported in four Atlantic coastal U.S. states (Table 1), where they are second only to ST36 strains in prevalence. Due to the self-limiting nature of infections and underreporting (9), ST631 infections may be more widespread.
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Source:J Clin Microbiol. 2017 Feb; 55(2): 645–648.
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DOI:
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Pubmed ID:27974540
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Pubmed Central ID:PMC5277537
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Rights Information:CC BY
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Compliance:PMC
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