Coronavirus: Worker at Toyota’s Woodstock, Ont. plant tests positive The company shut down its North American operations in March after two employees of the plant tested positive for the coronavirus.[ Sign up for our Health IQ newsletter for the latest coronavirus updates ]Raval said the company has implemented new measures since it reopened in May, which include facility access screening procedures, additional physical distancing and physical barriers, and enhanced sanitization procedures.“In the event that an employee does test positive for COVID-19, Toyota is responding quickly to help mitigate the spread and slow the infection rate for our team members,” Raval explained.