Publications by authors named "P Themudo"

subsp. serovar Enteritidis ( Enteritidis) is one of the leading causes of foodborne infections associated with broilers and laying hens. Portugal has had the lowest notification rates of salmonellosis in recent years, due to the vaccinations of layer and breeder flocks and strict compliance with biosecurity measures.

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To provide meat safety and consumer protection, appropriate hygiene control measures at an abattoir are required. This study aimed to evaluate the influence of visual fecal contamination level (VFCL) and lairage time (LT) on pig skin (PS) and external (ECS) and internal (ICS) carcass surfaces. The presence of , () and in PS, ECS, and ICS were evaluated.

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The Egyptian mongoose is a carnivore mammal species that in the last decades experienced a tremendous expansion in Iberia, particularly in Portugal, mainly due to its remarkable ecological plasticity in response to land-use changes. However, this species may have a disruptive role on native communities in areas where it has recently arrived due to predation and the potential introduction of novel pathogens. We report reference information on the cultivable gut microbial landscape of widely distributed Egyptian mongoose populations (, = 53) and related antimicrobial tolerance across environmental gradients.

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Gastrointestinal infections caused by nontyphoidal (NTS) remain one of the main causes of foodborne illness worldwide. Within the multiple existing serovars, the serovar Rissen is rarely reported, particularly as a cause of human salmonellosis. Between 2015 and 2017, the Portuguese National Reference Laboratory of Gastrointestinal Infections observed an increase in the number of clinical cases caused by multidrug-resistant (MDR) serovar Rissen, particularly from the Azores archipelago.

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Article Synopsis
  • A study screened 1840 Enterobacteriaceae isolates from food sources in Portugal for colistin resistance from 2010 to 2015.
  • The mcr-1 gene was found in 8.0% of E. coli and 0.47% of Salmonella enterica isolates, with many E. coli also producing other resistance enzymes.
  • No mcr-2 gene was found, indicating that the mcr-1 gene is a significant concern in the spread of antibiotic resistance in food-producing animals and meat.
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