There are now seven inmates at the Grand Valley Institution in Kitchener, Ont., who have tested positive for COVID-19, according to Correctional Services Canada’s website.
The agency’s website says that a total of 34 prisoners have been tested with 24 coming back negative and another four pending.
Over the weekend, the union representing guards said a corrections officer and at least four inmates at the prison had tested positive.
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The union told The Canadian Press that there was a lockdown in the unit with the infected prisoners.
Correctional staff say they are working to restrict inmate movement to try to stop the spread of the virus.
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Global News has reached out to Correctional Services Canada for more information.
Last week, a spokesperson for the agency told Global News that it had instilled enhanced cleaning and disinfected all high-touch surfaces while also installing prevention measures,