Detect antibodies following infection with murine typhus
Immediately following collection, mix sample by gently inverting 5 times
Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp)
Frozen (preferred) - >5 days
Refrigerated - 5 days
Indirect fluorescent antibody (IFA)
Negative: <1:64
Present or past: 1:64
Recent/active: >1:64