groups have been identified, three of which (groups A, B, and C)
cause acute gastroenteritis.( Infantile diarrhea, winter diarrhea,
acute nonbacterial infectious gastroenteritis, and acute viral gastroenteritis
are names applied to the infection caused by the most common and
widespread group A rotavirus)
gastroenteritis is self-limiting with mild to severe disease characterized
by vomiting, watery diarrhea, and low-grade fever. Infection is
spread through contaminated hands, objects, or utensils. Infected
food handlers may contaminate foods that require handling and no
further cooking, such as salads, fruits, and hors d'oeuvres.
diagnosis of the disease is made by identification of the virus
in the patient's stool.
A rotavirus is endemic worldwide. It is the leading cause of severe
diarrhea among infants and children, and accounts for about half
of the cases requiring hospitalization
B rotavirus, 9also called adult diarrhea rotavirus or ADRV), has
caused major epidemics of severe diarrhea affecting thousands in
C rotavirus is rare.
incubation period ranges from 1-3 days. Symptoms start with vomiting
followed by 4-8 days of diarrhea. Recovery is usually complete.
However, severe diarrhea without fluid and electrolyte replacement
may result in severe diarrhea and death. Childhood mortality is
almost 1 million cases/year worldwide.
of all ages are susceptible to rotavirus infection.
6 months to 2 years of age, premature infants, the elderly, and
the immunocompromised are particularly prone to more severe symptoms
caused by infection with group A rotavirus e disease.