Coughs and sneezes really do spread diseases, airborne droplets from your infected mucus, phlegm and snot sprayed over your companions on the daily commute, in the office, at the shops, at school etc can pass the viral or bacterial particles to infect that other person if the particles get into their nose, mouth or on the surface of their eyes. Here are just a few of the nasties you might catch from a cough or a sneeze or someone drooling on you: Bacterial meningitis, chickenpox, common cold, influenza, mumps, strep throat, tuberculosis, measles, rubella, whooping cough etc