Publications by authors named "V R Parreira"
Background: The Glittre-ADL test is a comprehensive test to evaluate functional capacity in patients with chronic obstructive pulmonary disease (COPD).
Aim: The primary aim was to validate the Glittre-ADL test with and without the backpack performed in three laps as an alternative to five laps in people with COPD.
Methods: Forty-eight participants with mild to severe COPD (mean ± SD age: 71 ± 7 years; FEV: 46 ± 17 %predicted) were recruited and performed two 6-min walk tests (visit 1); two Glittre-ADL tests with backpack (visit 2), and the Glittre-ADL test with and without the backpack, in random order (visit 3).
Avian necrotic enteritis due to the Gram-positive bacterium has re-emerged following the ban on antibiotic growth promoters in many poultry producing countries. The limited number of previous studies has left important gaps in our understanding of the genetic diversity and virulence traits of the pathogen. To address these knowledge gaps, in this study, we sequenced the genomes of 41 isolates recovered from commercial broiler chicken flocks in Quebec, Canada, including isolates from healthy birds and those affected by necrotic enteritis.
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- Aquatic ecosystems like Lake Wilcox harbor diverse bacterial strains, many of which can potentially harm humans, highlighting a significant health risk.
- Among 11 bacterial isolates studied, 67% were identified as potential human pathogens, indicating considerable genetic diversity and a reservoir for multiple pathogenic strains.
- The research uncovered widespread antibiotic resistance, particularly to β-lactams and tetracycline, emphasizing the importance of monitoring pathogens in such ecosystems to understand their genetic evolution and ecological impact.
Article Synopsis
- - Wastewater surveillance has proven effective in tracking the spread of SARS-CoV-2, including its variants, particularly at transportation hubs like Toronto Pearson International Airport.
- - Canadian municipalities, including WWTPs in Ontario, use techniques like qPCR and whole genome sequencing to monitor the virus in wastewater.
- - Findings from wastewater samples at the airport often identified new viral lineages 1-4 weeks before clinical cases were reported, highlighting the potential for early detection in pandemic response.
Draft genome sequences of three poultry Shamba isolates from South Africa.
Microbiol Resour Announc
September 2024
Nontyphoidal serovars are foodborne pathogens commonly transmitted through poultry products. Draft genome sequences of three subsp. serovar Shamba isolates which were obtained from poultry house dust in South Africa are reported herein.
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