Norovirus, the culprit behind a nasty stomach bug, is rising again in Canada
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(Laura Pelley/ CBC News) — Highly contagious norovirus, known for causing a nasty, days-long stomach illness, is on the rise in Canada after a pandemic lull, federal health officials confirmed to CBC News.

Since early January, reported cases of norovirus have been “increasing both at the national level and within  …