Ahh yes...the germaphobe's nightmare.

It's the same as with any communicable virus (cold, flu, etc). Protect your eyes, mouth and nose.

The ridiculous Dr.No get-up that Jude Law was wearing is probably a bit overboard. The most I would venture to carry against such a scenario is a N95 and a pair of goggles or safety glasses.
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Safety is something that happens between your ears, not something you hold in your hands.
- Jeff Cooper