What Does an Asymptomatic COVID-19 Infection Look Like?

The video discusses asymptomatic COVID-19 infections, highlighting a study comparing symptomatic and asymptomatic patients. It reveals that asymptomatic individuals can still experience lung abnormalities and shed the virus longer. The study also examines immune responses, noting a decline in antibody levels over time. Pooled testing is introduced as a cost-effective method to detect more cases, though it doesn't determine contagiousness. The video emphasizes the need for further research to understand asymptomatic infections and improve testing strategies.

What challenges do researchers face in determining the contagiousness of asymptomatic individuals?

Describe the pooled testing strategy mentioned in the text and its potential benefits.