Section 6
Chapter 5,116

Detection of antigenically distinct rotaviruses from infants

Dimitrov, D.H.; Estes, M.K.; Rangelova, S.M.; Shindarov, L.M.; Melnick, J.L.; Graham, D.Y.

Infection and Immunity 41(2): 523-526


ISSN/ISBN: 0019-9567
PMID: 6307873
Accession: 005115670

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Antigenically distinct rotaviruses, i.e., viruses morphologically identical to conventional rotaviruses by electron microscopy, yet lacking the common group antigen(s) detected by an enzyme-linked immunosorbent assay, were found in 2 of 51 fecal samples from Bulgarian infants with rotavirus gastroenteritis. These antigenically distinct viruses contained 11 segments of double-stranded RNA, but they demonstrated a unique RNA migration profile after electrophoresis of the genome RNA in polyacrylamide gels. This report confirms the presence of a new group of rotaviruses in humans. The significance of these viruses is currently unknown, and specific diagnostic tests must be developed for epidemiological studies to determine their role as human and veterinary pathogens and to evaluate their impact on proposed vaccine development programs.

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