What is the correct punctuation for this sentence:
Since food-borne illness can be serious—or even fatal—it is important for people to know and practice safe food-handling behavior to help reduce the risk of getting sick from contaminated food.
I would like to insert a comma after fatal. Would a comma be correct or should I leave in the em dash?
Since food-borne illness can be serious—or even fatal—it is important for people to know and practice safe food-handling behavior to help reduce the risk of getting sick from contaminated food.
I would like to insert a comma after fatal. Would a comma be correct or should I leave in the em dash?