Windsor-Essex will be part of a province-wide emergency brake shutdown for the next month.
"Small businesses are exhausted of being a scapegoat for the Ontario government's lack of planning or foresight", said Ryan Mallough, CFIB director of provincial affairs for Ontario, in a statement.
Legault has said the increase in infections in the affected regions isn't due to inadequate health measures but rather to people violating those rules.
Sources told CBC News that Ford and his cabinet intend to announce a four-week shutdown of the province that will begin on Saturday.
With more than $1.6 billion invested to protect against COVID-19, schools remain safe for students and staff. Keeping schools open is critical to the mental health and well-being of Ontario youth. Spring break will also continue as planned for the week of April 12th.
Brown says the spread of variants threatens the province's health system's ability to deal with regular intensive care admissions and care for all patients.
The announcement comes hours after the province's science advisers said stay-at-home orders are needed to control the third wave driven by more contagious and deadly COVID-19 variants.
"We know that he new variants are more contagious", Dr. Samantha Hill, Ontario Medical Association president, said Thursday.
Ontario is reporting 2,557 COVID-19 cases Thursday with 23 deaths.
For the new measures, people are asked to limit trips outside the home for essential purposes. Employers should make "every effort" to have employees work from home. There will also be an earlier curfew - 8 p.m. instead of 9:30 p.m. - to further discourage social gatherings.
The capacity for outdoor organized public events or social gatherings is a maximum of five people, except for gatherings with members or the same household or gatherings with one household and one person from another household who lives alone.
Ford says retail stores will see limits on capacity while restaurants will be restricted to takeout, delivery and drive-through service. Retail locations will be allowed to stay open at 25% capacity, grocery stores and pharmacies will be allowed to operate at 50% capacity.
Businesses not permitted to open include: museums, personal care services day camps, casinos and bingo halls, concert venues and more.
Prohibiting indoor and outdoor dining.
Dr. Brown believes schools should be the last to close and first to open because of the impacts the shutdowns have on children.
Weddings, funerals and other religious services will be capped at 15 per cent of regular indoor capacity.
Indoor social gatherings are prohibited and outdoor gatherings will be limited to five people.
Unlike back in December, the province is not issuing a stay-at-home order for Ontarians.
Windsor is now in the red zone, the fourth tier of the Ontario COVID-19 Response Framework.
When the stay-at-home order lifted, the Algoma health unit moved to the yellow - protect level.
Durham Region Health Department reported 104 new cases Wednesday, with 22 cases reported in Oshawa.