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The page below is a sample from the LabCE course Tickborne Diseases. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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CTF virus/CDC

Colorado Tick Fever: Laboratory Diagnosis

Diagnosis can be made through viral culture of blood. Serology by IgM IFA for neutralizing antibodies can be useful, but may not be positive until 14-21 days after symptoms begin. Reverse transcription polymerase chain reaction (RT-PCR) is the most sensitive test early in disease. These tests are performed in State Health Departments.