Norovirus Infection: Causes

Pathogenesis (development of disease)

Noroviruses (formerly: Norwalk-like viruses; Norwalk-like viruses) belong to the Caliciviridae family along with the sapoviruses. They can be divided into five gene groups (GG I-V), with GG III and GG V being non-human pathogenic.

Humans are the sole reservoir of the virus. Transmission occurs fecal-orally or by ingestion of droplets produced during vomiting. Infection can be transmitted from person to person, but also through contaminated food and drink.

Etiology (causes)

Behavioral causes

  • Contact with infected individuals
  • Consumption of contaminated food