A Massive Study Aims to Find Undetected Covid-19 Cases

It could reveal the true magnitude of the pandemic

Kaitlyn Sadtler, PhD, study lead for laboratory testing, holds up a microsampling device from the home blood collection kit used in the study. Credit: NIBIB

Scientists think one reason for the rapid spread of the new coronavirus is that some people who are infected don’t get any symptoms at all. These asymptomatic carriers can unwittingly spread the virus to others.