Catalog · Physics of COVID-19 Transmission Lecture 9 of 49 Video 1-7: Transfer of Respiratory Pathogens—Escape Time of Virions ← Previous Video 1-6: Transfer of Respiratory Pathogens—Viruses Next → Video 1-8: Transfer of Respiratory Pathogens—Release of Viral Load from a Drop (ASIDE) ✓ Mark complete Materials Transcript (PDF) ↗ transcript