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Hamburger polyomaviruses.

Alberto Peretti1, Peter C FitzGerald1, Valery Bliskovsky1

  • 1National Cancer Institute, Bethesda, MD, USA.

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|January 9, 2015
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This summary is machine-generated.

Researchers detected three polyomavirus species in ground beef, including a novel bovine polyomavirus (BoPyV2). This finding suggests foodborne viruses may warrant further investigation for potential disease associations.

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Area of Science:

  • Virology
  • Food Safety
  • Oncology

Background:

  • Epidemiological studies suggest a link between beef consumption and colorectal cancer risk.
  • A potential explanation involves heat-stable, carcinogenic infectious agents in beef.
  • Polyomaviruses are ubiquitous, heat-stable, non-enveloped DNA viruses known for carcinogenicity.

Purpose of the Study:

  • To investigate the presence of polyomaviruses in supermarket meat samples.
  • To assess the suitability of virion enrichment and rolling circle amplification (RCA) for detecting DNA viruses in food.

Main Methods:

  • Virion enrichment was used to isolate viruses from meat samples.
  • Rolling circle amplification (RCA) was employed to amplify viral DNA.
  • Next-generation sequencing identified the detected viral species.

Main Results:

  • Three polyomavirus species were identified in ground beef.
  • One novel species, bovine polyomavirus 2 (BoPyV2), was discovered and is related to carcinogenic human and raccoon polyomaviruses.
  • Other DNA viruses, including herpesviruses and adenoviruses, were also detected in various meat samples.

Conclusions:

  • The virion enrichment/RCA method is effective for detecting detergent-stable DNA viruses.
  • The presence of animal polyomaviruses in food necessitates further research into their potential association with human diseases.