Table 3:

Results of microbiologic investigations in a 4-year-old boy with aphasia and ataxia

Laboratory testResult
EBV EA IgGNonreactive
EBV VCA IgGNonreactive
EBV EBNA IgGNonreactive
EBV VCA IgMReactive
Measles IgGReactive
Measles IgMNonreactive
Mumps IgGNonreactive
Mumps IgMNonreactive
Urine RNA for mumpsNegative
CMV IgGNonreactive
CMV IgMNonreactive
Bartonella IgG titre1:256
Lymphocytic choriomeningitis IgGNonreactive
Lymphocytic choriomeningitis IgMNonreactive
Lyme IgG/IgM EIAReactive
Lyme IgM Western blotReactive
Lyme IgG Western blotReactive
Nasopharyngeal swab
 Influenza A/B PCRNegative
 Viral cultureNegative
Stool culture
 Bacterial cultureNo growth
 Norovirus PCRPositive
 Rotavirus ICTNegative
  • Note: CMV = cytomegalovirus, EA = enzyme assay, EBNA = Epstein–Barr virus nuclear antigen, EBV = Epstein–Barr virus, EIA = enzyme immunoassay, ICT = indirect Coombs test, IgG = immunoglobulin G, IgM = immunoglobulin M, PCR = polymerase chain reaction, VCA = viral capsid antigen.