Norovirus

Epidemiology

  • Incidence: Noroviruses are the most common etiology of viral gastroenteritis in humans
  • Age Distribution: Noroviruses affect all age groups

Classification

  • Family: Caliciviridae
    • Species: Norwalk Virus
      • Genus: Norovirus (multiple strains)

Microbiology

  • Structure: single-stranded RNA, non-enveloped viruses
  • Genetics: genetically diverse
  • Transmission
    • Fecal Contamination of Food/Water
    • Person to Person Contact
    • Aerosolization of Virus with Contamination of Surfaces

Clinical

  • Abdominal Pain (see Abdominal Pain, [[Abdominal Pain]])
  • Diarrhea (see Diarrhea, [[Diarrhea]]): watery
  • Generalized Weakness
  • Headache (see Headache, [[Headache]])
  • Lethargy
  • Loss of Taste
  • Low-Grade Fever (see Fever, [[Fever]])
  • Myalgias (see Myalgias, [[Myalgias]])
  • Nausea/Vomiting (see Nausea and Vomiting, [[Nausea and Vomiting]]): emesis may be forceful

Treatment

  • Self-Limited Illness:

References

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