A biological weapon which "drains" moisture from flora and fauna? Hello everyone! I'm currently writing a novel in a setting where a biological weapon has devastated the world as we know it. Even though the story is not meant to be scientifically accurate and doesn't revolve around the "downfall of the old world" itself rather than the world that emerged from it ~ 200 yrs. later, I wanted the downfall to be at least a little plausible. My idea was basically some kind of... virus, maybe (?), which "drains" moisture from living beings (humans, animals, plants...), causing them to "wither and die". I also wanted the virus to remain on Earth, making it necessary to regularily use a vaccine in order to survive. So my question basically is - Is that idea completely far off or could such a virus actually be fabricated? I'd be very grateful for advice! :) Thanks in advance, Nicolas PS: Sorry for any grammar/spelling mistakes, I'm not a native speaker, and sorry if I accidently posted in the wrong forum!