While humanity may have been a metaphorical virus in this scene, a literal virus is now teaching us a sorely needed lesson.
“Every mammal on this planet instinctively develops a natural equilibrium with the surrounding environment. But you humans do not. You move to an area and you multiply and multiply, until every natural resource is consumed. The only way you can survive is to spread to another area.”
“There is another organism on this planet that follows the same pattern. Do you know what it is? A virus.”