Hey all,
I posted this last month. The first site is a picture of the life cycle of Myxobolus a Myxozoan.
http://www.biodeug.com/cours/balic/0144.jpg
...and this is very informative site on fish infections and parasites-
http://www.paru.cas.cz/folia/content.php?volume=5
I still think the consumption of contaminated fish, probably salmon, is the source. Linda