West Nile Virus (PCR)

Preferred Sample

Brain, kidney, heart



Acceptable Samples

Swabs (oropharyngeal, cloacal), Tissue (liver, spleen, lung, spinal cord), cerebrospinal fluid, mosquito pools


Days Tested


Turnaround Time

1-3 business days from test day


This assay targets the RNA of a portion of the West Nile virus genome. Serum is not recommended for testing by PCR.


Equine | Wildlife Exotic | Other

Shipping Requirements

To ensure inclusion in the test run, samples should arrive the day prior to test day.

Additional Instructions

Submit swabs in sterile, redtop tubes (without additives) or other sterile screwcap containers to with a small amount of saline (enough to cover the fibrous head of the swab) to maintain moisture. Viral transport media and universal transport media are also acceptable. Gel, such as culturette media or the type found in serum separator tubes, can inhibit PCR and should not be tested. Bacterial transport containers are not appropriate for PCR testing. If bacterial culture is also requested, please submit a second swab in the appropriate bacterial transport container.