This clip explains outbreaks and how outbreaks are understood through S-curves and SIR models.

This clip expains herd immunity and the possble routes to achieve it.

Hank explains how the cellular immune response uses helper, cytotoxic, and regulatory T cells to attack body cells compromised by pathogens.

Hank explains adaptive immune systems and how they function to fight against pathogens ny creating antibodies.

What is Corona Virus? How do viruses spread? This animation explains the COVID virus came about and was able to spread from host to host and create a global pandemic.