TABLE 3.

Comparison of serologic IgM responses to rSh-5, rUeno7k, and rChiba viruses determined by ELISAa

PatientAge (mo)No. of days after onset of illnessbIgM response
rSh-5 (NV/GII)rUeno7k (NV/GII)rChiba (NV/GI)
PrecAcutecPostcPreAcutePostPreAcutePost
1247<100800100<100<100<100<100<100<100
2236<100400<100<100<100<100<100<100<100
3172100<100200<100<100100<100<100<100
4172<100100200<100<100<100<100<100<100
5167<1001,600<100<100100100<100<100<100
6138<10012,800<100<100<100<100<100<100<100
71061003,200<100<100<100100<100100<100
898<1003,200100<100<100<100<100<100<100
996<1001,600200<100<100100<100100<100
1086<1001,600100<100<100100<100<100<100
1185<100200<100<100<100100<100<100<100
1277<1003,200200<100<100<100<100<100<100
  • a Serial twofold dilutions starting at 1:100 were tested.

  • b Number of days after the onset of illness, the days when acute-phase samples were collected.

  • c Pre, Acute, and Post, preinfection, acute infection, and postinfection serum samples, respectively.