Study of class I integron in a Burkholderia cepacia complex strain isolated from blood colture

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Linda Furlanis *
Lucia Corich
Lucilla Dolzani
Enrico Angelo Tonin
Cristina Lagatolla
(*) Corresponding Author:
Linda Furlanis | lfurlanis@units.it

Abstract

The Burkholderia cepacia complex (Bcc) consists of several species that cause lung infections in patients with cystic fibrosis but are also capable to colonize immunocompromised patients. Once established, the infection is usually difficult to eradicate, as Bcc is intrinsically resistant to many antibiotics. Besides, the acquisition of additional resistance determinants by horizontal gene transfer makes very difficult the therapeutic approach to these infections. Among horizontally acquired DNAs, integrons have been frequently reported in many Gramnegative bacteria that affect human health, but they have not been found frequently in Burkholderia isolates until now. In the present work we report on a Bcc isolate, recovered from the blood of an immunocompromised patient, that carries a 2.3 kb class I integron already described in a Salmonella enterica isolate eight years ago, coding for aacA4, aadA1 and catB2 in its cassette array.

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