The latest coronavirus news from Canada and around the world Tuesday. This file will be updated throughout the day. Web links to longer stories if available.

10:51 p.m.: A coalition of about 50 retailers is calling on the Ontario government to lift COVID-19 restrictions for non-essential stores it claims is making things worse.

In an open letter to Premier Doug Ford and Health Minister Christine Elliott, the retailers argue that shutting down Toronto and Peel Region to restrict the virus's spread hasn't reduced the number of shoppers.

Instead, consumers are funnelled into fewer, crowded stores and adjacent communities, which potentially creates greater health risk.

The retailers say the current policy pushes more consumers to big-box and discount stores that remain open after being deemed essential, while thousands of small, independent and local stores are closed despite selling many of the same products.

10:46 p.m.: The Centers for Disease Control and Prevention told President Donald Trump's coronavirus task force on Tuesday that its new guidance would cut quarantine time for individuals exposed to the virus by as much as half, according to two people familiar with the matter.