Since the 17th century, when Antonie van Leeuwenhoek first observed microorganisms through the lens of a rudimentary microscope, humans have slowly come to appreciate that ours is a germy world.
Office of Strategic Communication
Since the 17th century, when Antonie van Leeuwenhoek first observed microorganisms through the lens of a rudimentary microscope, humans have slowly come to appreciate that ours is a germy world.