COVID-19, the disease caused by the virus, at Place Kensington.“The problem was discovered during a followup by the CIUSSS, which noticed a discrepancy between the public health data and that of the CIUSSS,” the regional authority said.The 19 deaths at the luxury seniors residence on Ste-Catherine Street occurred in the months of April and May, with the last death on May 16.At the height of the pandemic, the CIUSSS said it had to intervene at Place Kensington and provide assistance in the form of nursing and administrative staff.“The absence of several members of staff from the residence is said to have contributed to the delay,” the regional health authority said.[ Sign up for our Health IQ newsletter for the latest coronavirus updates.