Outbreaks were happening even after facilities were closely monitoring the residents' temperatures. The challenge was getting ahead of this problem. 
Here's the NY Times article by Dr. Levitan explaining the strange nature of Covid19 pneumonia having almost no symptoms at all until its too late to intervene. 
After digging through the data, Shalom and his team discovered that the oxygen levels had significantly decreased up to 2 weeks prior to the onset of high fevers. 
Action on this information, operators have the ability to detect the Covid19 and address it while they still can. Days or even weeks prior to the onset of any detectable fevers. 
Visit MegaDataHS.com for the full infographic here