Human Diseases Associated with Astroviridae Viral Gastroenteritis Astrovirus gastroenteritis, seen principally in young children, resembles a mild form of rotavirus gastroenteritis.
Immunity probably lasts for years, and most adults are resistant to experimental infection.
Less severe responses develop following subsequent exposure to one of the other serotypes. Viral Diarrhea Astrovirus infection is also a major cause of viral diarrhea.