On Ask the Expert, Dr. Loren Hopkins joined the KRLD Afternoon News to discuss the dynamics behind the testing of wastewater for COVID-19. She is the Chief Environmental Science Officer with the Houston Health Department and a professor at Rice University.

<p>On Ask the Expert, Dr. Loren Hopkins joined the KRLD Afternoon News to discuss the dynamics behind the testing of wastewater for COVID-19. She is the Chief Environmental Science Officer with the Houston Health Department and a professor at Rice University.</p>

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