Gastrointestinal Viruses
Gastrointestinal Viruses
Viral gastroenteritis It is thought that viruses are responsible for up to 3 /4 of all infective diarrhoeas Viral gastroenteritis is the second most common viral illness after upper respiratory tract infection In developing countries, viral gastroenteritis is a major killer of infants who are undernourished Rotaviruses are responsible for half a million deaths a year Many different types of viruses are found in the gut but only some are associated with gastroenteritis
Viral Gastroenteritis ◼ It is thought that viruses are responsible for up to 3/4 of all infective diarrhoeas. ◼ Viral gastroenteritis is the second most common viral illness after upper respiratory tract infection. ◼ In developing countries, viral gastroenteritis is a major killer of infants who are undernourished. Rotaviruses are responsible for half a million deaths a year. ◼ Many different types of viruses are found in the gut but only some are associated with gastroenteritis
Associated with gastroenteritis ■ Rotaviruses ■ Adenoviruses4041 ■ Caliciviruses嵌杯病毒 Norwalk like viruses or SRSV(Small Round Structured Viruses ■ Astroviruses SRV( Small Round Viruses) ■ Coronaviruses ■ Noroviruses
Associated with gastroenteritis ◼ Rotaviruses ◼ Adenoviruses 40 41 ◼ Caliciviruses嵌杯病毒 ◼ Norwalk like viruses or SRSV (Small Round Structured Viruses) ◼ Astroviruses ◼ SRV (Small Round Viruses) ◼ Coronaviruses ◼ Toroviruses
Found in the gut, not normally associated with gastroenteritis Polio Coxsackie a Coxsackie B ■Echo Enteroviruses 68-71 ■ Hepatitis a Hepatitis E ■ Adenoviruses1-39 ■ Reoviruses
Found in the gut, not normally associated with gastroenteritis ◼ Polio ◼ Coxsackie A ◼ Coxsackie B ◼ Echo ◼ Enteroviruses 68-71 ◼ Hepatitis A ◼ Hepatitis E ◼ Adenoviruses 1-39 ◼ Reoviruses
Found in the gut as opportunistic infection CMV ■HSV ■VZV ■H|V
Found in the gut as opportunistic infection ◼ CMV ◼ HSV ◼ VZV ◼ HIV