The Crap has been flung far and wide by that fan that somebody forgot to turn off. You and your family head for the boonies because the zombies are munching on your neighbors' noggins. After stumbling through the woods for a while, you come across a stream. It looks pretty clear and clean. What the heck, you'll filter some through a T-shirt so that you and your crew can have a drink before continuing.
What you don't see is a little thing that is going to cut your family's chances of survival to a small sliver. It is called Giardia lamblia by the smart people, and Beaver Fever by us common folk.
Giardia cysts enter waterways by sewage, cattle runoff and beaver ponds. What looks like reasonable drinking water to you can be carrying cysts that will cause some serious intestinal aggravation at a time you really don't need it.
Read about Giardiasis here, and be prepared
What you don't see is a little thing that is going to cut your family's chances of survival to a small sliver. It is called Giardia lamblia by the smart people, and Beaver Fever by us common folk.
Giardia cysts enter waterways by sewage, cattle runoff and beaver ponds. What looks like reasonable drinking water to you can be carrying cysts that will cause some serious intestinal aggravation at a time you really don't need it.
Read about Giardiasis here, and be prepared