Gulls as carriers of antimicrobial resistance genes in different biogeographical areas of South America

LORENTI ELIANA; FABIANA MOREDO; JAVIER ORIGLIA; DIAZ, JULIA I.; CREMONTE , FLORENCIA; GIACOBONI GABRIELA

ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS.

ACAD BRASILEIRA DE CIENCIAS

Lugar: Rio de Janeiro; Año: 2021 vol. 93

0001-3765

The aim of this communication was to establish if Enterobacterales associated with gulls in Argentina harbored antimicrobial resistance (AMR) genes. We analyzed cloacal swabs in two contrasting areas: Ensenada, Buenos Aires province (26 Larus dominicanus and 22 Chroicocephalus maculipennis) and Puerto Madryn, Chubut province (20 L. dominicanus). In Ensenada, blaCTX-M and mcr-1 genes, were isolated from both gull species, whereas in the Puerto Madryn, only blaCTX-M gene was found. We report for the first time C. maculipennis as carrier of AMR. The finding of AMR in wildlife constitutes a useful tool in evaluating the anthropogenic impact on environmental health