Why experts say COVID-19 contact tracing may be more valuable than ever
• 8 min read
The source of COVID-19: What we know
A team assembled by the World Health Organization recently visited Wuhan to research where COVID-19 came from, but it could be years before there are clear answers about how the outbreak started.Jane Tyska/Bay Area News Group via Getty Images, FILE
Many states are rolling back restrictions and masking guidance now that just over half of American adults are vaccinated against COVID-19. But public health experts say this summer could be a crucial moment for contact tracing -- the process of identifying those exposed to communicable infectious disease.