Rotavirus Infections in Families: A Clinical and Virological Study

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Abstract
Among 25 family members of 8 children with acute rotavirus gastroenteritis (8 siblings and 17 adults) gastroenteritis was recorded in 9 (5 siblings and 4 adults), and minor symptoms in 8 (2 siblings and 6 adults). A rotavirus infection was diagnosed in 7 of the family members with gastroenteritis and was probably the cause of the disease in the remaining 2 in this group. Four of the 8 family members with minor symptoms were infected with rotavirus, whereas no infection was detected among the 8 family members without symptoms. Serological findings suggested that infants and young children underwent a primary infection with rotavirus, whereas older children and adults probably were reinfected. Adults as well as children with rotavirus infection excreted virus and may have served as sources of infection.