| outbreaks of gastroenteritis in elderly nursing homes and retirement facilities associated with human caliciviruses. | eleven outbreaks of acute gastroenteritis, eight of which were in nursing homes or retirement facilities, were reported in virginia during the winter of 1993-1994. serum samples (four outbreaks) and stool samples (two outbreaks) from involved people were tested for human calicivirus (hucv) infection by enzyme immune assays (eias) using recombinant norwalk virus (rnv) and mexico virus (rmx) capsid antigens and reverse transcription-polymerase chain reaction (rt-pcr). of the 31 pairs of acute and ... | 1996 | 8950691 |