Antimicrobial-Resistant Salmonella Isolated from Eurasian Otters (Lutra lutra Linnaeus, 1758) in Portugal

Oliveira, Manuela; Pedroso, Nuno M.; Sales-Luís, Teresa; Santos‐Reis, Margarida; Tavares, Luís; Vilela, C. L.

doi:10.7589/0090-3558-46.4.1257

Cited by 18 publications

(17 citation statements)

References 9 publications

(12 reference statements)

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“…Bacterial resistance patterns, especially in the case of multiresistant isolates, are useful to differentiate between strains or to identify the common resistance source (Kaszanyitzky et al 2003;Sayah et al 2005;Oliveira et al 2009). In cocci, divergent profiles were observed in isolates from the same farm.…”

Section: Discussionmentioning

confidence: 99%

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Antimicrobial resistance in Gram-positive bacteria from Timorese River Buffalo (Bubalus bubalis) skin microbiota

Oliveira¹,

Monteiro

Rana³

et al. 2009

Trop Anim Health Prod

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The Timorese River Buffalo (Bubalus bubalis) plays a major role in the East Timor economy, as it is an important source of animal protein in human nutrition. They are widely spread throughout the country and are in direct contact with the populations. In spite of this proximity, information on their microbiota is scarce. This work aimed at characterizing the skin microbiota of the East Timorese River Buffalo and its antimicrobial resistance profile. Skin swab samples were taken from 46 animals in surveys conducted in three farms located in "Suco de Nairete", Lospalos district, during July and August 2006. Bacteria were isolated and identified according to conventional microbiological procedures. A total of 456 isolates were obtained, including Gram-positive (n = 243) and Gram-negative (n = 213) bacteria. Due to their importance as potential pathogens and as vehicles for antimicrobial resistance transmission, Gram-positive cocci (n = 27) and bacilli (n = 77) isolates were further characterized, and their antimicrobial resistance profile determined by the disk diffusion method according to the Clinical and Laboratory Standards Institute guidelines. This study shows the high bacterial diversity of B. bubalis skin microbiota, representing an important first step towards understanding its importance and epidemiologic role in animal health. It also points out the potential role of these animals as vectors of antimicrobial resistant bacteria dissemination and the importance of antimicrobial resistance monitoring in developing countries.

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Section: Discussionmentioning

confidence: 99%

“…Independently of the occurrence of an infection, it is also relevant to monitor the occurrence and distribution of antimicrobial resistance strains (Kaszanyitzky et al 2003;Oliveira et al 2009). The emergence of resistant bacteria is mainly attributed to selective pressure originated by the excessive use of antimicrobial compounds.…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial resistance in Gram-positive bacteria from Timorese River Buffalo (Bubalus bubalis) skin microbiota

Oliveira¹,

Monteiro

Rana³

et al. 2009

Trop Anim Health Prod

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“…Serovars of these disease outbreaks in birds have been identified as Typhimurium O:4,12 and O:4,5,12 (Hughes et al, 2008;Kapperud et al, 1998;Refsum, Heir, et al, 2002), phagetype DT160 (Alley et al, 2002), in hedgehogs O:4,5,12 , and in otters Salmonella enterica ssp. arizonae and S. Gallinarum (Oliveira et al, 2010). Most of these isolates, when tested, are sensitive to antimicrobials used in human and veterinary medicine with few exceptions and thus are clearly different from productive livestock.…”

Section: Salmonella In European Wildlife and Associated Serovarsmentioning

confidence: 97%

“…Most of these isolates, when tested, are sensitive to antimicrobials used in human and veterinary medicine with few exceptions and thus are clearly different from productive livestock. Yet, there are reports identifying resistant and even multiresistant isolates in birds like quails, finch or gulls (Hudson et al, 2000;Palmgren, Sellin, Bergström, & Olsen, 1997) as well as in otters (Oliveira et al, 2010).…”

Section: Salmonella In European Wildlife and Associated Serovarsmentioning

confidence: 97%

Salmonella in meat from hunted game: A Central European perspective

Paulsen

Smulders

Hilbert

2012

Food Research International

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“…In Portugal, work by Oliveira et al (2008Oliveira et al ( , 2009Oliveira et al ( , 2010Oliveira et al ( , 2011 and Semedo-Lemsaddek et al (2013) has shown high levels of resistance in bacterial isolates from fecal microbiota (e.g Salmonella, Aeromonas, enterococci) of free-living otters. Of particular concern is the isolates multiresistant profile, defined as the resistance to more than one antimicrobial class.…”

Section: Otters and Antimicrobial Resistant Bacteriamentioning

confidence: 99%

The Eurasian otter Lutra lutra (Linnaeus, 1758) in Portugal

Pedroso¹,

Sales-Luís²,

Santos‐Reis³

2014

Munibe Monogr., nat. ser.

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La nutria eurasiática Lutra lutra (Linnaeus, 1758) en Portugal Lutra lutra (Linnaeus, 1758) igaraba eurasiarra Portugalen ABSTRACT Eurasian otters Lutra lutra (Linnaeus, 1758) are known to occur in Portugal since historical times but only in 1995 a national survey confirmed the species' broad distribution. Since then, studies and projects conducted in different aquatic environments indicate the existence of a healthy population, the availability of vegetation cover, water and prey being the major factors explaining otter presence. Spraint analyses showed that fish, amphibians and American crayfish form the bulk of otter diet. Due to increasing knowledge about the species ecology and distribution, in 2005, otter status was changed, from "Insufficiently Known" to "Least Concern". Recent main lines of investigation have become increasingly threat specific and include: otter use of reservoirs, man-otter conflicts (fish farming), otters and non-native species interactions (prevalence in otter diet; competition with American mink) and otters and antimicrobial resistant bacteria. Destruction of the riparian vegetation commonly associated with dam construction, river regulation, agricultural expansion, gravel and sand extraction, as well as the development of tourism in, costal and wetland areas are still potential threats to otter populations. Overall, in the near future otters seem safe from major disrupting settings but otter conservation and effective management are still an important issues. This is especially relevant in the Iberian Peninsula, as climate changes are expected to reduce suitable otter habitats. Knowledge gaps and future research needs are also addressed in this chapter. KEYWORDS:Conservation, otter, Portugal, research, status. RESUMENLa presencia de la nutria euroasiática Lutra lutra (Linnaeus, 1758) en Portugal se conoce desde tiempos históricos, pero no fue hasta 1995 cuando gracias a un sondeo nacional se confirmó la amplia distribución de la especie. Desde entonces, se han realizado múltiples estudios y proyectos en diferentes ambientes acuáticos que indican la existencia de una población sana, siendo la disponibilidad de cobertura vegetal, el agua y las presas los principales factores que explican la presencia de la nutria. Los análisis de excrementos mostraron que los peces, los anfibios y el cangrejo de río americano forman el grueso de la dieta de la nutria. Debido al aumento de los conocimientos sobre la ecología y distribución de la especie, en 2005, el estado de la nutria pasó de "Insuficientemente Conocida" a "Preocupación Menor". Recientes líneas de investigación se han dado a conocer un aumento de amenazas específicas que incluyen: el uso de los embalses por parte de las nutrias, los conflictos hombre-nutria (acuicultura), y las interacciones entre las nutrias y las especies no nativas (prevalencia en la dieta de la nutria , la competencia con el visón americano) y las nutrias y bacterias resistentes a los antimicrobianos. La destrucción de la vegetación de ribera asociada comúnmente ...

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Antimicrobial-Resistant Salmonella Isolated from Eurasian Otters (Lutra lutra Linnaeus, 1758) in Portugal

Cited by 18 publications

References 9 publications

Antimicrobial resistance in Gram-positive bacteria from Timorese River Buffalo (Bubalus bubalis) skin microbiota

Antimicrobial resistance in Gram-positive bacteria from Timorese River Buffalo (Bubalus bubalis) skin microbiota

Salmonella in meat from hunted game: A Central European perspective

The Eurasian otter Lutra lutra (Linnaeus, 1758) in Portugal

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