BMC Research Notes (Feb 2021)

Extended-spectrum β-lactamase bla CTX-M-1 group in gram-negative bacteria colonizing patients admitted at Mazimbu hospital and Morogoro Regional hospital in Morogoro, Tanzania

  • Nyambura Moremi,
  • Vitus Silago,
  • Erick G. Mselewa,
  • Ashery P. Chifwaguzi,
  • Mariam M. Mirambo,
  • Martha F. Mushi,
  • Lucas Matemba,
  • Jeremiah Seni,
  • Stephen E. Mshana

DOI
https://doi.org/10.1186/s13104-021-05495-x
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 7

Abstract

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Abstract Objective The objective of this study was to determine the proportion of extended spectrum β-lactamase producing gram-negative bacteria (ESBL-GNB) colonizing patients admitted at Mazimbu hospital and Morogoro Regional hospital, in Morogoro, Tanzania. Rectal colonization with ESBL-GNB increases the risks of developing bacterial infections by extra-intestinal pathogenic ESBL-GNB. Results Of the 285 patients investigated, 123 (43.2%) carried ESBL-GNB in their intestines. Five of the 123 ESBL positive patients were colonized with two different bacteria, making a total of 128 ESBL producing isolates. Escherichia coli (n = 95, 74.2%) formed the majority of ESBL isolates. The proportion of CTX-M-1 group genes among ESBL isolates tested was 94.9% (93/98). History of antibiotic use (OR: 1.83, 95% CI: 1.1–3.2, P = 0.03), being on antibiotic treatment (OR: 2.61, 95% CI: 1.5–4.53, P = 0.001), duration of hospital stay (OR: 1.2, 95% CI: 1.1–1.3, P < 0.001) and history of previous admission (OR: 2.24, 95% CI: 1.2–4.1, P = 0.009) independently predicted ESBL-GNB carriage.

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