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Related Experiment Videos

Studies on bovine Breda virus.

F Lamouliatte1, P du Pasquier, F Rossi

  • 1Laboratoire de Virologie, Centre Hospitalo-Universitaire de Bordeaux II, France.

Veterinary Microbiology
|December 1, 1987
PubMed
Summary
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Bovine Breda-like viruses were identified in diarrheic calves. These viruses show serological resemblance to human Breda virus and are related to French isolates, suggesting a potential zoonotic link.

Area of Science:

  • Veterinary Virology
  • Microbiology
  • Animal Health

Background:

  • Breda virus is a known cause of diarrhea in humans.
  • The presence and characteristics of Breda-like viruses in cattle have not been extensively studied.

Purpose of the Study:

  • To investigate the presence and morphology of Breda-like viruses in diarrheic calves.
  • To compare bovine Breda-like viruses with human and other international isolates.

Main Methods:

  • Electron microscopy was used to examine fecal samples from diarrheic calves.
  • Immune electron microscopy and immunofluorescence were employed for serological and antigenic comparisons.
  • Virus density was determined using sucrose gradient centrifugation.

Main Results:

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  • Particles resembling Breda virus were found in 16 out of 21 diarrheic calf fecal samples.
  • Bovine Breda-like viruses exhibited spherical to elongated shapes (60-270 nm) with surface spikes (9-13 nm).
  • Serological tests indicated a resemblance between human and bovine Breda-like viruses, and bovine isolates were related to French strains.

Conclusions:

  • Bovine Breda-like viruses are present in diarrheic calves and share characteristics with human Breda virus.
  • These findings suggest a potential serological relationship and possible zoonotic implications.
  • The study highlights the need for further research into bovine Breda-like viruses and their role in animal and human health.