High prevalence of ceftriaxone resistance among invasive Salmonella enterica serotype Choleraesuis isolates in Thailand: The emergence and increase of CTX-M-55 in ciprofloxacin-resistant S. Choleraesuis isolates.

S. Choleraesuis is a highly invasive zoonotic pathogen that causes a serious systemic infection in humans. The emergence and increase of resistance to ceftriaxone and ciprofloxacin among S.

Occurrence of a novel class 1 integron harboring qnrVC4 in Salmonella Rissen.

We described qnrVC4 in S. Rissen 166ANSS50, a swine isolate, which was detected in the study on quinolone resistance mechanisms of nontyphoidal Salmonella in Thailand. The isolate was found to harbor a ̴17-kb non-conjugative plasmid carrying qnrVC4 within 8.

Bacterial pathogens isolated from raw meat and poultry compared with pathogens isolated from children in the same area of rural Thailand.

To better understand the epidemiology of bacterial food borne pathogens in children, in relation to pathogens in meats from a market in rural Thailand, we collected 73 cultures samples from raw chicken, pork and fish at a local market where diarrheal disease surveillance was conducted. Standard methods were employed to isolate, identify and serotype enteric pathogens from children and food samples. Antibiotic susceptibility testing was performed.

Serotypes and antimicrobial resistance of Salmonella enterica ssp in central Thailand, 2001-2006.

This study was carried out to elucidate the epidemiological trends and antimicrobial susceptibilities against Salmonella serovars among Thai patients and asymptomatic carriers during 2001-2006 in central Thailand. A total of 1,401 human and 260 non-human isolates from various sources were included. The isolates were characterized using serotyping and antimicrobial susceptibility testing.

Molecular characterization of extended-spectrum cephalosporinase-producing Salmonella enterica serovar Choleraesuis isolates from patients in Thailand and Denmark.

The objective of this study was to characterize extended-spectrum cephalosporinase (ESC)-producing isolates of Salmonella enterica serovar Choleraesuis recovered from patients in Thailand and Denmark. Twenty-four blood culture isolates from 22 patients were included in the study, of which 23 isolates were recovered from 21 Thai patients during 2003, 2007, or 2008 and one isolate was recovered from a Danish traveler to Thailand. ESC production was confirmed in 13 out of the 24 isolates by MIC testing.