It's already been determined that if someone sneezes close to where you are, the germs can carry through the air to you. Same as a cough, or clearing your throat, or over-pronouncing a word that starts with a plosive (such as "tough" or "scatter" or "puppy"). Anything that can cause saliva to exit your mouth into the air - is something that can cause your germs to be - in the air.
Of course - saliva weighs more than air, and so it won't be in the air for very long. So unless you're standing close to that person (or within 10 feet of someone sneezing directly at you), the "airborne" germs are not going to be much of a thing.
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