February 18, 2021
Extending the symptoms that trigger a PCR test for COVID-19 could help detect around a third more cases of the disease. Read more
Reading level: College
EurekAlert!, the online, global news service operated by AAAS, the science society
Please Give Us Feedback!

Why are you reading this article? (check all that apply)







How do you feel about science?







Send Feedback
Free science fair projects.