“…Three practices were the most widespread in the framework of the operational processes: systematic polymerase chain reaction (PCR) testing of residents and professionals with symptoms of COVID as a mechanism for detecting positive cases and controlling infection [ 14 , 16 , 17 , 19 , 20 , 21 , 23 , 24 , 25 , 26 , 27 ]; the use of personal protective equipment (PPE) by facility personnel and masks by residents [ 14 , 15 , 16 , 17 , 19 , 20 , 21 , 23 , 24 , 25 , 26 , 27 ]; and restriction of outings and external visits [ 14 , 15 , 17 , 19 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 ]. Other practices commonly used included: case monitoring for the outbreak and contact tracing of COVID-19-positive individuals [ 14 , 15 , 19 , 20 , 21 , 23 , 25 , 26 , 27 ], cohort segmentation by identifying and monitoring transition zones regarding cleaning between contaminated area and other areas [ 14 , 16 , 18 ,…”