Astroviruses

Definition

Astroviruses are a group of RNA viruses that primarily cause gastroenteritis, particularly in young children and the elderly. They are a common cause of diarrhea and vomiting globally.

5 Must Know Facts For Your Next Test

1. Astroviruses have an icosahedral capsid structure without an envelope.
2. Transmission occurs primarily through the fecal-oral route, often via contaminated food or water.
3. Symptoms typically include diarrhea, nausea, vomiting, abdominal pain, and fever.
4. The incubation period for astrovirus infections is usually around 3 to 4 days.
5. Diagnosis is often confirmed through PCR (polymerase chain reaction) testing of stool samples.

Related terms

Gastroenteritis:

Inflammation of the stomach and intestines causing symptoms like diarrhea and vomiting.

PCR (Polymerase Chain Reaction):

A laboratory technique used to amplify DNA sequences, making it easier to diagnose infections.

Fecal-Oral Route:

A pathway typically involving ingestion of pathogens from contaminated feces through food or water.