The spread of coronavirus and the state of testing

Poll China Outbreak
This undated electron microscope image made available by the U.S. National Institutes of Health in February 2020 shows the Novel Coronavirus SARS-CoV-2, yellow, emerging from the surface of cells, blue/pink, cultured in the lab. Also known as 2019-nCoV, the virus causes COVID-19.

The Centers for Disease Control says it’s lifting screening restrictions to speed up testing of people who are afraid they have the virus even if their symptoms are mild. The question of who gets tested — and when — has drawn scrutiny in recent days as the U.S. death toll and the number of COVID-19 cases have increased.

MPR News host Kerri Miller talked with an epidemiologist about the latest guidelines on testing people for the virus.


  • Jennifer Nuzzo is an epidemiologist and senior scholar at the Johns Hopkins Center for Health Security in Baltimore.

To listen to the full conversation you can use the audio player above.

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