Art Nailed It Good! In my youth,I've often Traveled down to Mexico,I have Never gotten Montezumas Revenge,Turkey trots or Hershey Squirts,I had friend's with me,Who have! I got The Chorrillos,When I returned to The States,A few day's after!YMMV!

"Sixteen beluga whales and 15 ringed seals from the western Arctic region of Canada were examined for giardiosis and cryptosporidiosis... Giardia sp. cysts were identified in three of 15 (20%) seals, implicating them as a potential reservoir for this zoonosis in the arctic. Cysts of Giardia sp. were also detected in feces from 20 of 74 (28%) seals examined from the eastern coast of Canada..." From "Zoonotic protozoa in the marine en...ic health"

Another argument against eating raw fish, I guess...

Sue