So one of the things to be careful of is being overconfident with water filtration. In the past, I was more concerned about bacteria and protozoa than viruses so figured my backpacking filters were good -- and they were for nearly all of those threats. However, the standard ceramic filter is usually good to about 0.2 microns while the Ebola virus is only 0.08 microns wide.

I used to laugh at the Steripen folks as the pen kills viruses and bacteria but doesn't do much for filtering out chemical crap but the Steripen seems to be the best quickest way to handle drinking water (as long as you do a prefilter to get the non-living crap out) and it DOES kill viruses. I'm going to have to think about both an inline filter like the Sawyer Squeeze system as well as a Steripen for my upcoming trip to India ...