A worldwide epidemic starts when humans cut down trees in an area inhabited by bats, forcing them to relocate. One bat carrying the virus dropped a piece of banana into a pig pen. One pig consumed the banana piece, and when it was slaughtered, the virus spread to the butcher's hands. The butcher did not wash his hands before he went to shake the hand of a guest, thus spreading the disease to the guest, who then spread it to other people.

This clip discusses the importance of wearing masks and what masks do to protect others and ourselves. This clip also disccuses the spread of COVID-19 and how face masks are important in stopping the spread of viruses.

Pam shares tips on preventing the spread of germs with the rest of the office. Her tips include washing your hands regularly, covering your sneezes and coughs, and staying home if you're sick. Dwight interjects with a claim that exposing yourself to germs keeps your body healthy. Everyone else shares their germs with Dwight as a result.

In this example of carefully handling and eliminating a contaminant, the CDA isolates the threat, a child's sock, on George Sanderson to keep the rest of the monsters safe.

The Eds are trying to sell ice cream to the other kids in the cul-de-sac, but no one appears to be around. They ring Jimmy's doorbell to see if he is home, and they are surprised to see that he has chicken pox. The Eds notice quarantine signs in front of everyone's house, meaning that they are the only ones who did not fall victim to the disease.