| FIVE THINGS TO KNOW |
| | Omicron in Canada COVID-19 cases continue to spread across Canada. Ontario reported 9,826 new cases on Sunday, and a record-breaking 10,412 infections on Christmas Day. |
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| | Mourning Tutu Archbishop Desmond Tutu, a passionate advocate during the struggle to end apartheid in South Africa, died at age 90. Here’s how world leaders are remembering. |
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| | Carcinogen report
A chronic bacterial infection, a flame retardant and some byproducts of water treatment processes have been added to a list of carcinogens identified in the U.S. |
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| | Microplastics and IBD
A small new study has found that people with inflammatory bowel disease (IBD) have more microplastics in their feces. |
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| | Cruise control
At least four ocean cruise ships were turned away from ports of call or were prohibited from letting passengers disembark in the Americas this week because of COVID-19 cases aboard. |
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