Clinical Specimen Submission Guidance

Submit all specimens to 50 Orms St, Providence RI 02915. Open Monday to Friday 8:30 AM to 4:30 PM

Arbovirus (EEE, SLE, WNV)

Lab STI & Arbovirus Laboratory 401-222-5591
Organism Arborvirus
Disease Arborviral Encephalitis
Test Description

An enzyme-linked immunosorbent capture assay to detect IgM antibodies to West Nile Virus.

All other requests for arbovirus testing are sent to CDC.

Special Instructions

PREAUTHORIZATION for testing at CDC is required for specimens other than West Nile Virus.

Consult with the RIDOH Center for Acute Infectious Disease Epidemiology (401) 222-2577 for approval prior to transporting specimens.


Serum: minimum 5 mL collected in red top tube

Cerebrospinal fluid (CSF): minimum 2 mL collected aseptically.

Acute serum and CSF should be collected within the first 14 days following onset of symptoms.

Refrigerate at 2 - 8 C

CLIA regulations require two patient identifiers on the specimen container and the test requisition.

Form Required Rhode Island State Health Laboratories (RISHL) test requisition form
Test Request Arbovirus (WNV)

Transport specimens within 48 hours of collection.

Specimens must be transported on wet ice or equivalent cooling material and packaged in accordance with current federal shipping regulations.

Containers specifically labeled for transport of specimens to the RISHL STI & Arbovirus Laboratory are available in all serology labs and laboratory send out departments.

Integrity Non-hemolyzed
Normal Value Negative
Turnaround Time

WNV: 5 business days

Confirmation testing performed at CDC