The Naegleria fowleri amoeba can be as far north as you are - there is a lake in Minnesota that had it back in 2010 - so yes it's possible.

Nose clips are the best preventative other than staying out of the water, on the very off chance your BOW has the amoeba.

See this article for more info:

http://www.usatoday.com/story/news/natio...rasite/3633531/

Dale

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"When tempted to fight fire with fire, remember that the Fire Department usually uses water." - anonymous