滑铁卢地区公共卫生官员确认本地区第四宗Covid-19病例。最新病例是在Grand River Hospital诊断的，一位50多岁的女士，最近到访过法国和英国。目前她已经出院，在家自我隔离。
在3月13日上午，滑铁卢地区官网更新了所有Covid-19病例。之前的确诊病例是一位男士，最近曾到访拉斯维加斯，目前住院治疗。而之前两宗病例，其中一位女士到访意大利，另一位到访Puerto Rico，目前都在家自我隔离。
3月12日安省政府，考虑到Covid-19影响，所有公立学校在春假之后再关闭两周。而在滑铁卢地区，一些机构、商业活动以及聚会正在采取措施，遏制Covid-19病毒传播。滑铁卢市长Dave Jaworsky在给记者的声明中如此说：
“Earlier today the Region of Waterloo’s Public Health department issued a statement calling for no public gatherings of more than 250 people. To me, that says the St. Patrick’s Day party is over.
It’s time for the silent majority of students in our community to show their inner leadership on the outside. Speak out.
Stay home. Focus on your studies. Don’t go to Ezra Avenue. Period.
The gathering is illegal and dangerous. It poses significant health risks and the spread of COVID-19 is a very real concern.
No one can predict the impact of COVID-19. That is why you must stay away from this uncontrolled gathering.
Think of the implications. For two weeks afterward, you would have to watch for symptoms. Perhaps you will have to go into self-isolation, along with any family, roommates or visitors that you’ve infected. Perhaps you will be too sick to complete the work required over the last weeks of the school term, as you head into final exams.
Students were accepted into our great post-secondary institutions because of their smarts. Now is the time to show parents, family and friends that you have real “street smarts”. Stay off the streets.
Stay safe, and healthy. Speak out.”
