Catalog · Physics of COVID-19 Transmission Lecture 7 of 49 Video 1-5: Transfer of Respiratory Pathogens—Bacteria ← Previous Video 1-4: Transfer of Respiratory Pathogens—Equilibrium Size of Respiratory Aerosols Next → Video 1-6: Transfer of Respiratory Pathogens—Viruses ✓ Mark complete Materials Transcript (PDF) ↗ transcript