Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2021 Mar;100(3):100894.
doi: 10.1016/j.psj.2020.12.007. Epub 2020 Dec 10.

Epidemic patterns of antimicrobial resistance of Salmonella enterica serovar Gallinarum biovar Pullorum isolates in China during the past half-century

Affiliations

Epidemic patterns of antimicrobial resistance of Salmonella enterica serovar Gallinarum biovar Pullorum isolates in China during the past half-century

Fan Sun et al. Poult Sci. 2021 Mar.

Abstract

Pullorum is a chicken-specific systemic disease caused by Salmonella enterica serovar Gallinarum biovar Pullorum (S. Pullorum). This study was carried out to provide basic data for understanding the trends of S. Pullorum. A total of 652 S. Pullorum isolates collected in China during 1962-2019 were examined. Overall, 525 (80.5%) isolates were resistant to at least one antibiotic; 280 (42.9%) isolates resisted 3 or more classes of antibiotics and showed an increasing trend until 2015 and then decreased significantly. The most common multidrug-resistant pattern was ampicillin-tetracycline-nalidixic acid (13.6%). After 2008, 6 classes of antibiotic-resistant strains began to appear, and they have been prevalent ever since. In 2014, a strain resistant to 7 antibiotics (ampicillin-cefazolin-streptomycin-tetracycline-sulphonamides-nalidixic acid-nitrofurantoin) was isolated. The highest antimicrobial resistance was observed for nalidixic acid (71.9%), and the lowest was found for cefotaxime, meropenem, amikacin, gentamicin, fosfomycin, and polymyxin (0%). Our findings monitored the prevalence of the resistance of S. Pullorum during the past half-century in China. Continued surveillance of antimicrobial resistance and the rational use of antimicrobials is necessary and important to control the rapid increase in antimicrobial resistance in S. Pullorum.

Keywords: Salmonella enterica serovar Gallinarum biovar Pullorum; antimicrobial susceptibility; chicken; resistance trend.

PubMed Disclaimer

Figures

Figure 1
Figure 1
Antimicrobial resistance rate among S. Pullorum isolates collected from chickens in China during 1962–2019. Abbreviations: AMP, ampicillin; AMK, amikacin; ATM, aztreonam; CFZ, cefazolin; CHL, chloramphenicol; CIP, ciprofloxacin; CL, polymyxin; CTX, cefotaxime; FFC, florfenicol; FOS, fosfomycin; GEN, gentamicin; MEM, meropenem; NAL, nalidixic acid; NIT, nitrofurantoin; OLA, olaquindox; STR, streptomycin; SXT, sulphonamides; TET, tetracycline.
Figure 2
Figure 2
Multidrug resistance of S. Pullorum isolates collected from chickens in China between 1962 and 2019. Numbers “0” to “7” and the corresponding shadings indicate that isolates are resistant to 1, 2, 3, 4, 5, 6, and 7 antimicrobial agents, respectively.

Similar articles

Cited by

References

    1. Barrow P.A., Jones M.A., Smith A.L., Wigley P. The long view: Salmonella–the last forty years. Avian Pathol. 2012;41:413–420. - PubMed
    1. Cheong H.J., Lee Y.J., Hwang I.S., Kee S.Y., Cheong H.W., Song J.Y., Kim J.M., Park Y.H., Jung J.H., Kim W.J. Characteristics of non–typhoidal Salmonella isolates from human and broiler–chickens in Southwestern Seoul, Korea. J. Korean Med. Sci. 2007;22:773–778. - PMC - PubMed
    1. Clinical and Laboratory Standards Institute . CLSI; Wayne. PA: 2013. Performance Standards for Antimicrobial Disk and Dilution Susceptibility Tests for Bacteria Isolated from Animals. Second Informational Supplement VET01–S2.
    1. Clinical and Laboratory Standards Institute . CLSI; Wayne. PA: 2015. Performance Standards for Antimicrobial Susceptibility Testing: Twenty–Fifth Informational Supplement M100–S25.
    1. Dey S., Mahanti A., Batabyal K., Joardar S.N., Samanta I., Isore D.P., Pakhira M.C. Identification and antimicrobial susceptibility of Salmonella Gallinarum isolated from fowl typhoid outbreak in backyard Vanaraja fowl. Explor. Anim. Med. Res. 2016;6:63–67.

MeSH terms

Substances