What Is Roseola?
9. Diagnosis
Because roseola is usually mild, and causes symptoms similar to other mild diseases, it will often go undiagnosed. In some cases, the doctor may wish to wait for a few days to see if the rash associated with roseola appears. If/when the rash does appear then that is usually all that is needed to confirm the presence of the disease.
In some cases, a doctor might wish to confirm the diagnosis with a blood test. This is achieved by the patient providing a blood sample, which is then examined for signs of the antibodies that are produced to help fight the herpes virus 6 and herpes virus 7 vaccines.
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