Seroconversion patterns to four human rotavirus serotypes in hospitalized infants with acute rotavirus gastroenteritis.
We studied rotavirus-specific antibodies in paired sera from 71 hospitalized infants with acute rotavirus gastroenteritis. Most of the infants were less than six months old. Infants with serological evidence of a secondary rotavirus infection were excluded. With an enzyme-linked immunosorbent assay, 46% of the 71 infants studied showed specific IgM in convalescent sera. Titers of specific IgG and IgA increased in 7% and 2% of the infants, respectively. The presence of specific IgM correlated positively with age and severity of clinical symptoms. With a neutralization test, 59% of the infants showed a seroconversion: 20% to a single serotype (7% to serotype 1, 7% to serotype 3, and 6% to serotype 4), 21% seroconverted to two serotypes (nearly exclusively to serotypes 1 and 3), and 18% seroconverted to three serotypes (exclusively to serotypes 1, 3, and 4). No infant seroconverted to serotype 2 or to the heterologous (bovine) serotype 6.
Brüssow
H
H
Nestlé Research Center, Nestec Limited, Vers-chez-les-Blanc, Lausanne, Switzerland.
Werchau
H
H
Lerner
L
L
Mietens
C
C
Liedtke
W
W
Sidoti
J
J
Sotek
J
J
D000367:Age Factors; D000914:Antibodies, Viral / Q000096:biosynthesis*; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D005759:Gastroenteritis / Q000276:immunology*; D006801:Humans; D007070:Immunoglobulin A / Q000096:biosynthesis; D007074:Immunoglobulin G / Q000096:biosynthesis; D007075:Immunoglobulin M / Q000096:biosynthesis; D007223:Infant; D008297:Male; D009500:Neutralization Tests; D012401:Rotavirus / Q000145:classification / Q000276:immunology*; D012400:Rotavirus Infections / Q000276:immunology*; D012703:Serotyping
D000914:Antibodies, Viral; D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M