RNA viruses that cause diarrhea Flashcards
1
Q
What are the RNA viruses that cause diarrhea?
A
Caliciviruses (includes norwalk and norovirus), rotaviruses, adenoviruses, and astroviruses.
2
Q
Which of these viruses is classically associated with outbreaks?
A
Norovirus - cruise ships, hurricane katrina superdome.
3
Q
What virus family is rotavirus a member of?
A
reovirus (double stranded). Segmented genome.
4
Q
What does rotavirus cause?
A
Most important cause of infantile gastroenteritis. Associated with gastroenteritis in very young children in winter.
5
Q
What is the diarrhea of rotavirus caused by?
A
Villous destruction with atrophy leads to decreased absorption of Na+.
