How virus detectives trace the origins of an outbreak – and why it's so tricky
- Written by Marilyn J. Roossinck, Professor of Plant Pathology and Environmental Microbiology, Penn State
Every time there is a major disease outbreak, one of the first questions scientists and the public ask is: “Where did this come from?”
In order to predict and prevent future pandemics like COVID-19, researchers need to find...
Read more: How virus detectives trace the origins of an outbreak – and why it's so tricky