Gastrointestinal Viruses Virus genome Typical disease incubation Duration Rotaviruses: ds-segmented Major cause of 1-3 days 5-8 days GroupA,B, RNA diarrhea in children 24-56h3-7 days Caliciviruses ssRNA Infects adults and 1-3 days 1-3 days Norwalk children 18-24h 12-48h agents Epidemic viral gastroenteritis EAd 40, 41 Linear diarrhea in 7-8 days d dsRNA children Astrovirus +ssRNA Infects mainly 1-4 days 1-4 d children and elderly
Gastrointestinal Viruses Virus Genome Typical disease incubation Duration Rotaviruses: Group A, B, C ds-segmented RNA Major cause of diarrhea in children 1-3 days 24-56 h 5-8 days 3-7 days Caliciviruses Norwalk agents ssRNA Infects adults and children Epidemic viral gastroenteritis 1-3 days 18-24 h 1-3 days 12-48 h EAd 40,41 Linear dsRNA diarrhea in children 7-8 days 8-12 d Astrovirus +ssRNA Infects mainly children and elderly 1-4 days 1-4 d
Gastrointestinal viruses Infants: Rotavirus a: Adenovirus 40.41 Coxsackie A24 virus Infants children and adults Norwalk virus; Calicivirus嵌杯病毒 astrovirus: rotavirus b: Reovirus
Gastrointestinal Viruses ◼ Infants: Rotavirus A; Adenovirus 40,41; Coxsackie A24 virus ◼ Infants, children, and adults Norwalk virus; Calicivirus嵌杯病毒; astrovirus; Rotavirus B; Reovirus
Human rotavirus
Human Rotavirus
mportant Characteristics 70 nm round double shelled enclosing a genome of 11 segments of double stranded rna
Important Characteristics ◼ 70 nm round, double shelled, enclosing a genome of 11 segments of double stranded RNA