Results of microbiologic investigations in a 4-year-old boy with aphasia and ataxia
| Laboratory test | Result |
|---|---|
| EBV EA IgG | Nonreactive |
| EBV VCA IgG | Nonreactive |
| EBV EBNA IgG | Nonreactive |
| EBV VCA IgM | Reactive |
| Measles IgG | Reactive |
| Measles IgM | Nonreactive |
| Mumps IgG | Nonreactive |
| Mumps IgM | Nonreactive |
| Urine RNA for mumps | Negative |
| CMV IgG | Nonreactive |
| CMV IgM | Nonreactive |
| Bartonella IgG titre | 1:256 |
| Lymphocytic choriomeningitis IgG | Nonreactive |
| Lymphocytic choriomeningitis IgM | Nonreactive |
| Lyme IgG/IgM EIA | Reactive |
| Lyme IgM Western blot | Reactive |
| Lyme IgG Western blot | Reactive |
| Nasopharyngeal swab | |
| Influenza A/B PCR | Negative |
| Viral culture | Negative |
| Stool culture | |
| Bacterial culture | No growth |
| Norovirus PCR | Positive |
| Rotavirus ICT | Negative |
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.