Some studies say that reinfection with COVID-19 is possible, but we need more data to say how often it happens.
Brad Kern, PhD
Brad Kern, PhD
The George Washington University
Brad Kern is a masters of public health student at the George Washington University School of Public health, concentrating in epidemiology. His major research interests include outbreak surveillance and investigation, molecular epidemiology, and emerging infectious diseases.
Dr. Kern completed his PhD in microbiology at the University of Pennsylvania, where he studied the emerging pediatric pathogen Kingella kingae. He also holds a bachelor's degree in molecular biology from Princeton University and is a former NIH fellow.
Recent Submissions
October 16, 2020
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Everyday Prevention
October 16, 2020
When your immune system responds to the flu shot, sometimes you feel a bit sick. But this is just your body learning how to protect you from the flu.
September 11, 2020
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COVID-19 Basics
September 11, 2020
T-cells are an important part of the immune system and may play a role in protection against COVID separate from antibodies.
September 11, 2020
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I Think I Have COVID-19
September 11, 2020
New rapid COVID-10 tests can return results within minutes.
August 9, 2020
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Everyday Prevention
September 14, 2020
Wearing a mask in public is an important way to protect yourself and others from COVID-19. Choose the mask that fits you best.
August 4, 2020
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COVID-19 Basics
September 14, 2020
If you think you’ve been exposed to someone with COVID-19, self-quarantine for 14 days and get tested if any symptoms develop.
July 23, 2020
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COVID-19 Basics
July 29, 2020
There have been no confirmed cases in the scientific literature of people being infected a second time by the virus that causes COVID-19.
July 4, 2020
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COVID-19 Basics
September 14, 2020
The coronavirus that is causing this pandemic probably infected bats before it jumped to humans.
July 3, 2020
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COVID-19 Basics
September 14, 2020
New research shows that infected people with no symptoms sometimes have abnormal CT scans. But it also suggests they can get others sick for weeks!
May 25, 2020
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COVID-19 Basics
August 29, 2020
Wearing a mask and other social distancing activities won’t weaken your immune system because it has built-in resilience.
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