Microbiology

Herpes Simplex Virus PCR Update

As of April 5th, 2022, Herpes Simplex viral PCR testing will transition from being performed in the Spectrum Health Molecular department to the Microbiology department. There are no changes to the acceptable specimen sources for this test (cerebrospinal fluid and blood plasma specimens). Benefits of the new Microbiology testing method include:

• The new test method (DiaSorin Simplexa® HSV PCR) is FDA-cleared for testing spinal fluid specimens with a validated modification for testing plasma specimens. The prior method was a lab-developed test for both specimen types.

• Especially for pediatric patients, collecting sufficient specimen volumes can sometimes be challenging. The new method requires a minimum of 0.05 mL specimen per run whereas the prior method required 0.2 mL specimen.

• The frequency of testing will increase from typically one run per day to testing being performed at several times each day.

Additional details are available in the Lab Catalog.

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