Echovirus Antibody Panel
- Laboratory
- Quest Diagnostics
- Test code
- 35139
- Specimen
- Serum
- Fasting
- Not required
Laboratory assay overview
The current echovirus panel includes serotypes 4, 7, 9, 11, and 30. The echovirus serotypes used in this panel will vary depending upon current epidemiological data available from inhouse isolations CDC reports. Generally, the serotypes used are those most commonly associated with viral meningitis. Although there is cross-reactivity among the enteroviruses, most healthy people do not have detectable CF titers (>1:8). Therefore, detectable titers, especially those >1:32, should be considered diagnostic. Confirmed serodiagnosis is made by demonstration of a four-fold change in titers between acute and convalescent sera.
Quest Diagnostics population reference ranges
Quest Diagnostics calculates these statistical intervals for this specific assay and demographic group, not as universal optimal targets.
| Population | Range |
|---|---|
| Echovirus 4 Ab | <1:8 titer |
| Echovirus 7 Ab | <1:8 titer |
| Echovirus 9 Ab | <1:8 titer |
| Echovirus 11 Ab | <1:8 titer |
| Echovirus 30 Ab | <1:8 titer |
| <1:8 | Antibody Not Detected |
| ≥1.8 | Antibody Detected |
View complete laboratory reference notes
Echovirus 4 Ab <1:8 titer Echovirus 7 Ab <1:8 titer Echovirus 9 Ab <1:8 titer Echovirus 11 Ab <1:8 titer Echovirus 30 Ab <1:8 titer Interpretation Criteria <1:8 Antibody Not Detected ≥1.8 Antibody Detected
Quest Diagnostics test directory, test code 35139