Isolation and Antibiotic Susceptibility Profile of Salmonella spp. from Patients in a Tertiary Care Hospital in Thailand (SCOPUS)

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Research Article: Isolation and Antibiotic Susceptibility Profile of Salmonella spp. from Patients in a Tertiary Care Hospital in Thailand
Author: Piriyaporn Chongtrakool, Preeyanuch Wangleotsakulchai, Tippavan Tabboon, Huttaya Thuncharoon, Chalermsri Pummangura, Dararat Samretwit, Thitiya Yungyuen, Premwadee Khowwigkai, Tanate Suttisaewan & Somporn Srifuengfung
Email: dararat.sam@siam.edu ; somporn.sri@siam.edu
Department|Faculty: Faculty of Pharmacy,  Siam University, Bangkok 10160
Published: Journal of the Medical Association of Thailand, Volume 106, Issue 2, February 2023, Pages 200-206

Citation

Chongtrakool P., Wangleotsakulchai P., Tabboon T., Thuncharoon H., Pummangura C., Samretwit D., Yungyuen T., Khowwigkai P., Suttisaewan T., & Srifuengfung S. (2023). Isolation and antibiotic susceptibility profile of salmonella spp. from patients in a tertiary care hospital in Thailand. Journal of the Medical Association of Thailand, 106(2), 200-206.


ABSTRACT

Objective: The impact of COVID-19 on the number and antibiogram profile of Salmonella was studied between January 2018 and December 2021. The present time period included years before the COVID-19 pandemic, which are 2018 and 2019, and during the pandemic, which are 2020 and 2021.

Materials and Methods: Salmonella infections were classified into eight distinct serogroups using slide agglutination with specific antisera (A, B, C, D, E, F, G, and I). The susceptibility to antimicrobial agents were evaluated by the standard disk diffusion method.

Results: Four hundred fifty-one isolates were detected (139 in 2018, 119 in 2019, 102 in 2021, and 91 in 2021). Salmonella infection decreased by 25.2% from 258 isolates in 2018 and 2019 to 193 in 2020 and 2021. When comparing Salmonella infections in different age groups (0 to 10, 11 to 20, 21 to 30, 31 to 40, 41 to 50, 51 to 60, 61 to 70, and older than 70 years), before and during COVID-19, statistical significance was noted only in patients aged 11 to 20 (p=0.016). For clinical specimens (stool, blood, urine, pus, etc.), statistical significance was found only in blood specimens (p=0.036). The four most predominant Salmonella serogroups were B (31.1%), C (30.6%), E (15.7%), and D (11.4%). S. Typhi was present in 2.1% (4/193) of Salmonella isolates during COVID-19. The findings of a susceptibility test using the disk diffusion method for four commonly used drugs in treatment of severe salmonellosis as ampicillin, cefotaxime, ciprofloxacin, trimethoprim/sulfamethoxazole, before and during COVID-19 demonstrated statistical significance only in Salmonella serogroup D (p=0.028). Overall, drug susceptibility of Salmonella serogroup B, C, D, and E was ampicillin (range 15.1% to 55.9%), cefotaxime (range 66.7% to 100%), ciprofloxacin (range 18.8% to 59.1%), and trimethoprim/sulfamethoxazole (range 70.0% to 93.8%).

Conclusion: The present study results suggested the importance of monitoring the prevalence of Salmonella at a hospital in Bangkok. The antibiogram of susceptibility helps provide guidelines for clinician to consider empirical treatment.

Keywords: Salmonella, COVID-19 pandemic, Thailand.


Isolation and Antibiotic Susceptibility Profile of Salmonella spp. from Patients in a Tertiary Care Hospital in Thailand

Faculty of Pharmacy, Siam University, Bangkok, Thailand

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