2013
DOI: 10.1089/vbz.2013.1408
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Identification of diverse Salmonella Serotypes, Virulotypes, and Antimicrobial Resistance Phenotypes in Waterfowl From Chile

Abstract: Salmonella enterica is a pathogen with a wide host-range that presents great concern in developed and developing countries. To determine and characterize Salmonella strains found in Chile's waterfowl, we sampled 758 birds along 2000 km of the Chilean coast. In this sample, 46 isolates from 10 serotypes were detected, several with multidrug resistance phenotypes and different combinations of virulence-associated genes (virulotypes). These results suggest that Salmonella infection in waterfowl in Chile could hav… Show more

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Cited by 27 publications
(25 citation statements)
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“…Furthermore, it is one of the most prevalent serotypes isolated from cattle with clinical signs of salmonellosis; however, in pigs, it may occur in sick and asymptomatic animals [39]. This serotype was also isolated from seabirds [40], both in seagulls leaving in the proximity of garbage deposits [34] and in Magellan penguins from the Chilean Patagonia [41].…”
Section: Discussionmentioning
confidence: 99%
“…Furthermore, it is one of the most prevalent serotypes isolated from cattle with clinical signs of salmonellosis; however, in pigs, it may occur in sick and asymptomatic animals [39]. This serotype was also isolated from seabirds [40], both in seagulls leaving in the proximity of garbage deposits [34] and in Magellan penguins from the Chilean Patagonia [41].…”
Section: Discussionmentioning
confidence: 99%
“…During warmer months in Chile (Nov-Mar), both species can merge and establish large flocks, with thousands of birds normally found in wetlands and mouths of rivers. However, Kelp gulls also inhabits urban centers, fish markets and farms, constituting a local risk for inter-species transmission of pathogens carrying both resident and migratory species, among which influenza viruses and multidrug-resistant bacteria have already been pointed out (Clark et al, 2004;Fresno et al, 2013;Pereda et al, 2008).…”
mentioning
confidence: 99%
“…Esta situación es concordante con lo que se ha reportado en otros países, en que se han verificado diferencias entre serotipos y se ha establecido que S. Enteritidis posee, en general, menores niveles de resistencia antimicrobiana 10 . Sin embargo, estudios en cepas de S. enterica aisladas desde hospederos animales en Chile, correspondientes principalmente al serotipo Enteritidis, sugieren que los niveles de resistencia son significativamente mayores, siendo tetraciclina aquel antimicrobiano en que se observa el mayor porcentaje de cepas resistentes (70%) [45][46][47] . Esto implica que existen diferencias entre hospederos y que los animales, a través de las bacterias que los colonizan, están expresando el impacto antropogénico en el medio ambiente, determinado en este caso por la dispersión de residuos de antimicrobianos o directamente de bacterias resistentes 48,49 .…”
Section: La Resistencia Antimicrobianaunclassified
“…Aunque en la mayoría de los casos la infección de las aves es asintomática, estos serotipos también se han asociado a brotes de enfermedades y alta mortalidad en los animales 59, [65][66][67][68] . En Chile, estudios recientes en aves acuáticas tanto residentes como migratorias, han confirmado la presencia de S. enterica, siendo S. Enteritidis el serotipo de mayor frecuencia con más de 50% de los aislados 45,46,69,70 . Además, se reporta en estos animales la existencia de cepas multi-resistentes a los antimicrobianos, así como el aislamiento de S. Dublin, un serotipo zoonótico relacionado frecuentemente al ganado doméstico 71 .…”
Section: La Fauna Silvestreunclassified
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