Publications by authors named "Melody Hung-Fan"

Antimicrobial resistance (AMR) is a global emerging problem for food safety and public health. Retail meat is one of the vehicles that may transmit antimicrobial resistant bacteria to humans. Here we assessed the phenotypic and genotypic resistance of non-typhoidal Salmonella from retail meat collected in California in 2019 by the National Antimicrobial Resistance Monitoring System (NARMS) Retail Food Surveillance program.

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Article Synopsis
  • Non-typhoidal Salmonella is a major cause of foodborne illness in the U.S., especially linked to animal products, and the rise of antimicrobial resistance (AMR) adds to public health concerns.
  • A study of 958 retail meat samples in California found higher contamination odds in samples from fall, spring, and summer, and specifically in ground turkey compared to pork.
  • The study identified various serotypes and significant AMR, with a notable prevalence of resistance in chicken and turkey samples, and found multidrug-resistant isolates containing specific AMR genes and plasmids, indicating emerging resistance patterns.
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There is increasing evidence that retail food may serve as a source of that causes community-acquired urinary tract infections, but the impact of this source in a community is not known. We conducted a prospective, population-based study in one community to examine the frequency of recovery of uropathogenic genotypes from retail meat samples. We analyzed isolates from consecutively collected urine samples of patients suspected to have urinary tract infections (UTIs) at a university-affiliated health service and retail meat samples from the same geographic region.

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Rationale: Despite reports of unreliability, the QuantiFERON-TB interferon-γ release assay is increasingly used for the annual screening of individuals at risk for latent tuberculosis. Continued use of the QuantiFERON-TB assay suggests the need for more definitive evidence of its reproducibility and accuracy.

Objectives: To examine reproducibility and the accumulation of false-positive test results when the QuantiFERON-TB is repeated annually and to examine the validity of confirming positive test results with the performance of a second QuantiFERON-TB.

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