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HHV 6A & HHV 6B by PCR

Alternate test name

Human Herpesvirus 6, Roseola infantum, Exanthem subitum, Sixth disease

Gene name / Alternate gene name


Lab area
Microbiology - Molecular
Method and equipment
Real-time Polymerase Chain Reaction
Expected turn-around time
7 days
Specimen type
  • Whole blood


Specimen requirements
  • Whole blood (EDTA) - 1 mL minimum for 1 test, 3-5 mL recommended for multiple tests


Storage and transportation
  • All specimens must be shipped on dry ice
  • Exception: Specimens that will arrive at SickKids within 24 hours from the time of collection can be shipped on ice packs
Special requirements
  • This test enable the differentiation human herpesvirus 6 into the 2 variants, HHV-6A and HHV-6B.  



Disease condition


  • Roseola infantum, Exanthem subitum, Sixth disease
  • For monitoring of transplant patients
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