Have you ever seen a cough?

Schlieren photo of a coughIf we all had a flu shot, flu would be eliminated. But colds might stay around a very long time.

A plume of cough has finally been visualized using Schlieren photography [wiki] and published in the New England Journal of Medicine.

Let us not project infectious aerosols into the surrounding air.

Before you spend your hard-earned cash on Airborne, consider the following.

“In March, the manufacturers of Airborne agreed, as part of a class-action lawsuit, to refund more than $23 million to consumers who had purchased the product in the past.”