The Eastern Massasauga Rattlesnake (Sistrurus catenatus catenatus) is not lethal to adult humans. While it's venom would be lethal, the volume that one snake can introduce is too little to kill a normal adult.
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As I said, rattlesnakes are not much of a threat to the health of many people. I doubt that hookworms are, either.
The most lethal aspect of living in Canada is that there it is easier to freeze to death.
Of course, another advantage is that since Canada has only one tenth of the population of the US, one's vote counts for ten times as much.
Electorally, each Canadian is TEN TIMES as powerful as any American.
Of course, every Costa Rican is a HUNDRED TIMES more powerful, electorally speaking.
Plus in Canada and Costa Rica, there is no Mickeymouse Electoral College, either.