Within-Host and Population Transmission of blaOXA-48 in K. pneumoniae and E. coli

Autor: Haverkate, Manon R, Dautzenberg, Mirjam J D, Ossewaarde, Tjaco J M, van der Zee, Anneke, den Hollander, Jan G, Troelstra, Annet, Bonten, Marc J M, Bootsma, Martin C J, Sub Mathematical Modeling, Mathematical Modeling
Přispěvatelé: Sub Mathematical Modeling, Mathematical Modeling
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: PLoS ONE [E], 10(10). Public Library of Science
PLoS ONE
PLoS ONE, Vol 10, Iss 10, p e0140960 (2015)
PLoS One, 10(10). Public Library of Science
ISSN: 1932-6203
Popis: During a large hospital outbreak of OXA-48 producing bacteria, most K. pneumoniae OXA-48 isolates were phenotypically resistant to meropenem or imipenem, whereas most E. coli OXA-48 isolates were phenotypically susceptible to these antibiotics. In the absence of molecular gene-detection E. coli OXA-48 could remain undetected, facilitating cross-transmission and horizontal gene transfer of bla OXA-48. Based on 868 longitudinal molecular microbiological screening results from patients carrying K. pneumoniae OXA-48 (n = 24), E. coli OXA-48 (n = 17), or both (n = 40) and mathematical modelling we determined mean durations of colonisation (278 and 225 days for K. pneumoniae OXA-48 and E. coli OXA-48, respectively), and horizontal gene transfer rates (0.0091/day from K. pneumoniae to E. coli and 0.0015/day vice versa). Based on these findings the maximum effect of horizontal gene transfer of bla OXA-48 originating from E. coli OXA-48 on the basic reproduction number (R 0) is 1.9%, and it is, therefore, unlikely that phenotypically susceptible E. coli OXA-48 will contribute significantly to the spread of bla OXA-48.
Databáze: OpenAIRE