Astroviridae

Definition

Astroviridae is a family of non-enveloped, positive-sense, single-stranded RNA viruses known to cause gastroenteritis in humans and animals. They are primarily transmitted through the fecal-oral route and are a common cause of viral diarrhea.

5 Must Know Facts For Your Next Test

1. Astroviruses primarily affect children, the elderly, and immunocompromised individuals.
2. The incubation period for Astrovirus infections is typically 3 to 4 days.
3. Symptoms include diarrhea, vomiting, abdominal pain, and fever.
4. Diagnosis can be made using techniques like RT-PCR and enzyme immunoassays.
5. There is currently no specific antiviral treatment for Astrovirus infections; management focuses on rehydration and symptomatic relief.

Review Questions

• What population groups are most at risk for severe Astrovirus infections?
• Describe the typical symptoms associated with an Astrovirus infection.
• How is an Astrovirus infection diagnosed in a clinical setting?

Related terms

Rotavirus: A double-stranded RNA virus that causes severe diarrhea, especially in infants and young children.

Norovirus: A highly contagious virus causing acute gastroenteritis marked by vomiting and diarrhea.

Caliciviridae: A family of viruses that includes Norovirus and Sapovirus, both causing gastroenteritis.