Virulence potential of Escherichia coli strains causing asymptomatic bacteriuria during pregnancy.
نویسندگان
چکیده
We compared the virulence properties of a collection of asymptomatic bacteriuria (ABU) Escherichia coli strains to urinary tract infection (UTI) strains isolated from pregnant women in a university hospital over 1 year. The in vitro and in vivo studies suggest that ABU strains presented a virulence behavior similar to that of strains isolated from cases of cystitis.
منابع مشابه
Escherichia coli isolates causing asymptomatic bacteriuria in catheterized and noncatheterized individuals possess similar virulence properties.
Urinary tract infections (UTIs) are among the most common infectious diseases of humans, with Escherichia coli being responsible for >80% of all cases. Asymptomatic bacteriuria (ABU) occurs when bacteria colonize the urinary tract without causing clinical symptoms and can affect both catheterized patients (catheter-associated ABU [CA-ABU]) and noncatheterized patients. Here, we compared the vir...
متن کاملVirulence potential of Escherichia coli strains causing asymptomatic bacteriuria 1 during pregnancy
5 Service des Maladies Infectieuses et Tropicales, Groupe Hospitalo-Universitaire de 14 Carémeau, 30029 Nîmes Cedex 9, France 15 16 Address for correspondence: 17 *Professor Jean-Philippe Lavigne, Laboratoire de Bactériologie, CHU de Nîmes, Groupe 18 Hospitalo-Universitaire de Carémeau, Place du Professeur Robert Debré, 30029 Nîmes Cedex 19 09, France – Phone: (33) 4 66 68 32 02 – Fax: (33) 4 6...
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Escherichia coli isolates from patients with bacteriuria of pregnancy were compared by PCR with isolates from patients with community-acquired cystitis for the presence of established virulence determinants. The strains from patients with bacteriuria of pregnancy were less likely to carry genes for P-family, S-family, and F1C adhesins, cytotoxic necrotizing factor 1, and aerobactin, but virtual...
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During asymptomatic bacteriuria (ABU), bacteria colonize the urinary tract for extended periods of time without causing symptoms of urinary tract infection. Previous studies indicate that many Escherichia coli (E. coli) strains that cause ABU have evolved from uropathogenic E. coli (UPEC) by reductive evolution and loss of the ability to express functional virulence factors. For instance, the p...
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ورودعنوان ژورنال:
- Journal of clinical microbiology
دوره 49 11 شماره
صفحات -
تاریخ انتشار 2011