If you’re in a confined aircraft; when one person sneezes, it goes all the way through the aircraft.

The worst pandemic in modern history was the Spanish flu of 1918, which killed tens of millions of people. Today, with how interconnected the world is, it would spread faster.

Feelings are more dangerous than ideas, because they aren’t susceptible to rational evaluation. They grow quietly, spreading underground, and erupt suddenly, all over the place.

Whatever starts in California unfortunately has an inclination to spread.

The fragrance of flowers spreads only in the direction of the wind. But the goodness of a person spreads in all directions.

Widespread use of antibiotics promotes the spread of antibiotic resistance. Smart use of antibiotics is the key to controlling its spread.