Clonal occurrence of Salmonella Weltevreden in cultured shrimp in the Mekong Delta, Vietnam

Gazi Md Noor Uddin; Marianne Halberg Larsen; Lisa Barco; Tran Minh Phu; Anders Dalsgaard

doi:10.1371/journal.pone.0134252

Clonal occurrence of Salmonella Weltevreden in cultured shrimp in the Mekong Delta, Vietnam

Gazi Md Noor Uddin, Marianne Halberg Larsen, Lisa Barco, Tran Minh Phu, Anders Dalsgaard

Food Safety and Zoonoses

14 Citations (Scopus)

165 Downloads (Pure)

Abstract

This study investigated the occurrence, serovar and antimicrobial resistance of Salmonella spp. in shrimp samples from intensive and extensive farms located in three different provinces in the Mekong Delta, Vietnam. Shrimp from 11 of the 48 farms all contained S. Weltevreden, except for one farm yielding S. Agona, with no difference in Salmonella occurrence between the two production systems. Pulsed field gel electrophoresis (PFGE) of S. Weltevreden showed closely related XbaI pulse types, suggesting a clonal relationship despite the farms and shrimp samples being epidemiologically unrelated. S. Weltevreden was susceptible to most antimicrobials tested, with a few strains being resistant to florfenicol, chloramphenicol, sulfamethoxazole or trimethoprim. Future studies of the ecology of S. Weltevreden should establish if this serovar may survive better and even multiply in warm-water shrimp farm environments compared to other Salmonella serovars.

Original language	English
Article number	e0134252
Journal	PLOS ONE
Volume	10
Issue number	7
Number of pages	9
ISSN	1932-6203
DOIs	https://doi.org/10.1371/journal.pone.0134252
Publication status	Published - 29 Jul 2015

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title = "Clonal occurrence of Salmonella Weltevreden in cultured shrimp in the Mekong Delta, Vietnam",

abstract = "This study investigated the occurrence, serovar and antimicrobial resistance of Salmonella spp. in shrimp samples from intensive and extensive farms located in three different provinces in the Mekong Delta, Vietnam. Shrimp from 11 of the 48 farms all contained S. Weltevreden, except for one farm yielding S. Agona, with no difference in Salmonella occurrence between the two production systems. Pulsed field gel electrophoresis (PFGE) of S. Weltevreden showed closely related XbaI pulse types, suggesting a clonal relationship despite the farms and shrimp samples being epidemiologically unrelated. S. Weltevreden was susceptible to most antimicrobials tested, with a few strains being resistant to florfenicol, chloramphenicol, sulfamethoxazole or trimethoprim. Future studies of the ecology of S. Weltevreden should establish if this serovar may survive better and even multiply in warm-water shrimp farm environments compared to other Salmonella serovars.",

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AU - Uddin, Gazi Md Noor

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AU - Phu, Tran Minh

AU - Dalsgaard, Anders

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AB - This study investigated the occurrence, serovar and antimicrobial resistance of Salmonella spp. in shrimp samples from intensive and extensive farms located in three different provinces in the Mekong Delta, Vietnam. Shrimp from 11 of the 48 farms all contained S. Weltevreden, except for one farm yielding S. Agona, with no difference in Salmonella occurrence between the two production systems. Pulsed field gel electrophoresis (PFGE) of S. Weltevreden showed closely related XbaI pulse types, suggesting a clonal relationship despite the farms and shrimp samples being epidemiologically unrelated. S. Weltevreden was susceptible to most antimicrobials tested, with a few strains being resistant to florfenicol, chloramphenicol, sulfamethoxazole or trimethoprim. Future studies of the ecology of S. Weltevreden should establish if this serovar may survive better and even multiply in warm-water shrimp farm environments compared to other Salmonella serovars.

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Clonal occurrence of Salmonella Weltevreden in cultured shrimp in the Mekong Delta, Vietnam

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