Echovirus Antibodies, Serum

ECHA1

35139

Echovirus serotypes 4, 7, 9, 11, and 30

1 mL serum

0.5 mL

Room temperature

Room temperature: 7 days
Refrigerated: 14 days
Frozen: 30 days

Set up: Tues-Sat; Report available: 1-5 days after receipt at the performing laboratory. Add three (3) days for transport.

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

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.