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Department of Health Services

Public Health Regional Laboratory

Babesia duncani (WA1) Immunofluorescent Assay (IFA)

Babesia duncani, also known as WA1, causes symptoms similar to those seen in cases of babesiosis caused by Babesia microti. Most of the documented cases have occurred in the Pacific Northwest.

Portal Ordering Code

BD IFA

CPT Code(s)

86753

Fee Schedule

Storage and Transport Criteria
Specimen Storage Specimen Transport
Acceptable Specimens
Minimum Volume
Frozen Range
-70°C - 0°C
Refrigerated Range
0.1°C - 8°C
Room Temperature Range
8.1°C - 30°C
Stability at
4°C - 25°C
Serum 1 mL Acceptable Acceptable Acceptable 8 hours
Includes

Positives titered to end point

Methodology

IFA

Assay Category

FDA Approved

Reference Range

See laboratory report

Alternative Names
  • WA-1 IgG Antibody
  • Babesia duncani IgG Antibody
Preferred Specimen(s)

Serum

Alternative Specimen(s)

N/A

Minimum Volume

1 mL

Special Instructions

1ml of serum is sufficient volume to perform all tick-borne disease serology assays. Submission of multiple tubes of serum in not necessary.

Reject Criteria
  • Inadequately labeled specimens
  • Leaking specimens
  • QNS (quantities not sufficient)
  • Specimens not meeting the Storage & Transport criteria upon receipt at laboratory
Setup Schedule

Testing done once a week.

Turn around time (TAT)

7 business days from arrival at the lab