COVID outbreak infects 43% of the 11th floor (CDC)

In March of 2020, a call center worker on the 11^th floor of an South Korean office building infected 43% of the 216 employees in less than 2 weeks.  The CDC used this outbreak as a case study on how COVID can spread in office settings. We have the floor plan and marked the infected employees in blue in the table below. We also show that once the infection started to spread it only took 4 days to infect 97 of the 216 employees and then lead to closing the entire building. The ventilation systems were reviewed 4 days later. Let us help you avoid something like this in 2021.  Credit CDC full research report here