17 documents found, page 1 of 2
Endangered mussels as antimicrobial-resistant E. coli and other species (Entero...
Saavedra, Maria José; Fernandes, Conceição; Ballem, Andressa; Varandas, SimoneFreshwater unionoids are one of the most threatened animal groups worldwide, suffering dramatic regressions globally. The freshwater pearl mussel Margaritifera margaritifera, currently listed as critically endangered in Europe, and Potomida littoralis, listed as endangered, are both present in the River Tua basin (Portugal). The inappropriate use of antibiotics has led to the emergence and spread of resistant b...
Freshwater bivalves as reservoirs of multiresistant bacteria: the case of two e...
Varandas, Simone; Fernandes, Conceição; Ballem, Andressa; Teixeira, Amílcar; Saavedra, Maria JoséFreshwater bivalves (FB), responsible for important functions and vital ecosystem services are sensitive to environmental changes, making them excellent bioindicators
Antibiotic resistance profile among Shiga toxin-producing Escherichia coli isol...
Ballem, Andressa; Almeida, Gonçalo; Almeida, Carina; Fernandes, Conceição; Saavedra, Maria JoséShiga toxin-producing Escherichia coli (STEC) are foodborne pathogens that can cause serious diseases in humans, including bloody diarrhoea and kidney failure. Ruminants, such as cattle, are considered the main reservoirs and source of STEC. Human infection can occur through contaminated food and water, or direct contact with infected animals. STEC antimicrobialresistance (AMR) is increasingly frequent in patie...
Endangered bivalves as antimicrobial-resistant Escherichia coli and other speci...
Saavedra, Maria José; Fernandes, Conceição; Ballem, Andressa; Varandas, SimoneFreshwater unionoids are one of the most threatened animal groups worldwide, suffering dramatic regressions globally. The freshwater pearl mussel Margaritifera margaritifera, currently listed as critically endangered in Europe, and Potomida littoralis, listed as endangered, are both present in the River Tua basin (Portugal). These aquatic long-lived organisms, responsible for important functions and vital ecosy...
Antibiotic resistance profile among Shiga toxin-producing Escherichia coli isol...
Ballem, Andressa; Almeida, Gonçalo; Almeida, Carina; Fernandes, Conceição; Saavedra, Maria JoséShiga toxin-producing Escherichia coli (STEC) are foodborne pathogens that can cause serious diseases in humans, including bloody diarrhoea and kidney failure. Ruminants, such as cattle, are considered the main reservoirs and source of STEC. Human infection can occur through contaminated food and water, or direct contact with infected animals.
Prevalence and control of Shiga toxin-producing E. coli: from diversity in dair...
Dias, Carla Sofia Pereira; Ballem, Andressa; Pinto, Ana; Almeida, Gonçalo; Fuciños, Pablo; Almeida, Carina; Saavedra, Maria José; Silva, FilipeShiga toxin-producing E. coli (STEC) strains are important foodborne pathogens worldwide, transmitted from ruminant to humans through contaminated food. Their control is still a challenge as most E. coli in nature are commensal and, thus, controlling strategies should target only pathogenic strains/serotypes. Bacteriophages (bacterial viruses) can cope with this challenge by allowing a tailored intervention. We...
Antibiotic Resistance Profile among Shiga Toxin-Producing Escherichia coli Isol...
Ballem, Andressa; Almeida, Gonçalo; Almeida, Carina Manuela Fernandes; Fernandes, Conceição; Saavedra, Maria JoséShiga toxin-producing Escherichia coli (STEC) are foodborne pathogens that can cause serious diseases in humans, including bloody diarrhoea and kidney failure. Ruminants, such as cattle, are considered the main reservoirs and source of STEC. Human infection can occur through contaminated food and water, or direct contact with infected animals. STEC antimicrobial-resistance (AMR) is increasingly frequent in pati...
Prevalence and serotypes of Shiga toxinproducing Escherichia coli (STEC) in dai...
Ballem, Andressa; Gonçalves, Soraia; Garcia-Meniño, Isidro; Flament-Simon, Saskia C.; Blanco, Jesús E.; Fernandes, Conceição; Saavedra, Maria JoséThis is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The prevalence of Shiga toxin (Stx)-producing Escherichia coli (STEC) was determined by evaluating its presence in faecal samples from 155 heifers, and 254 dairy cows in 21 farms...
Prevalence and serotypes of Shiga toxin-producing Escherichia coli (STEC) in da...
Ballem, Andressa; Gonçalves, Soraia; Garcia-Meniño, Isidro; Flament-Simon, Saskia C.; Blanco, Jesús E.; Fernandes, Conceição; Saavedra, Maria JoséThe prevalence of Shiga toxin (Stx)-producing Escherichia coli (STEC) was determined by evaluating its presence in faecal samples from 155 heifers, and 254 dairy cows in 21 farms at North of Portugal sampled between December 2017 and June 2019. The prevalence of STEC in heifers (45%) was significantly higher than in lactating cows (16%) (p<0.05, Fisher exact test statistic value is <0.00001). A total of 133 STE...
Draft genome sequences of 12 Shiga toxin-producing Escherichia coli strains iso...
Fiedler, Gregor; Ballem, Andressa; Brinks, Erik; Almeida, Carina; Franz, Charles M. A. P.; Oliveira, Hugo Alexandre MendesShiga toxin-producing Escherichia coli (STEC) is a foodborne pathogen transmitted from animals to humans through contaminated food. Cattle are the main reservoir of STEC, but their genetic diversity is still poorly characterized, especially regarding strains isolated in Portugal. We therefore present the draft genomic sequences of 12 STEC strains isolated from cattle in the north of Portugal.