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J Infect Dis. 1983 Jan;147(1):95-106.

Oral administration of human rotavirus to volunteers: induction of illness and correlates of resistance.


Four of 18 volunteers challenged orally with human rotavirus strain D (subgroup 2, serotype Wa) developed a diarrheal illness two to four days after inoculation. Viral shedding was detected in five of the 18 volunteers, whereas 12 (67%) developed serologic evidence of infection. Two volunteers who developed diarrheal illness after the initial inoculation were given the same inoculum 19 months later; neither developed diarrhea, although one developed constitutional and gastrointestinal symptoms. The presence of preinoculation serum immunofluorescent antibody to rotavirus strain D or high levels of neutralizing antibody to Wa or reassortant DS-1 human rotavirus correlated with resistance to diarrheal illness. Although prechallenge serum antibody correlated with resistance to diarrhea and/or shedding of rotavirus, the relationship of preexisting local neutralizing activity in intestinal fluid was less clear-cut.

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