TED-Ed: How do viruses jump from animals to humans? - Ben Longdon

The video discusses a swine flu outbreak at a fair, highlighting how viruses can jump from animals to humans, potentially causing epidemics. It explains the stages of viral infection, using human influenza as an example, and the challenges viruses face in infecting new species. The video also covers the role of mutations in cross-species infections and the efforts of virologists to predict and prevent potential epidemics.

What new insight or understanding did you gain from this video?