There were a few things that we learned during lock down, ranging from home baking to how only crazy people run big cat zoos. We also learned whether companies could operate in lock down. Our own experience was seamless both in how our company continued our day to day operations, and how our outsourced service providers can also operate as normal. Essentially, it was a very thorough test of the impact on productivity if all staff moved to remote working. If productivity held up or even improved, this could lead to a fundamental shift in how corporates viewed office workers, working from home. Our experience was very much that it was business as usual and we are unaware of any office-based corporates that were not able to continue operations despite their offices being closed.

Last week, Jack Dorsey, CEO of Twitter quoted that “The past few months have proven we can make that work. So, if our employees are in a role and situation that enables them to work from home and they want to continue to do so forever, we will make that happen.” Google and Facebook have extended their work from home policies into 2021. We have also heard of call centres remaining on a work from home basis despite being able to return to the office as New Zealand has moved to level 2.

Call centres and other office settings, which do not allow for social distancing are another reason that companies may choose to continue with remote working. In New Zealand we had COVID-19 clusters stemming from the tavern in Matamata, the Bluff wedding, the college in Auckland and several rest homes. We did not have a cluster related to a call centre. However, South Korea did.

The Korea Centre for Disease Control and Prevention (KCDC) has written a report on the call centre cluster that recently occurred in Seoul. It related to a 19-floor office building in one of the busiest urban areas of Seoul. The building had commercial offices on the first 11 floors with residential floors above. The office workers did not generally move between the floors and there was no common dining area. The KCDC tested 922 employees, 203 residents and 20 visitors and sent 16,628 text messages to people within 5 minutes of the office, based on cell location data to also be tested.

The KCDC testing found 97 cases of COVID-19 associated with the 19-floor office building, with 97% of them coming from the level 11 call centre. The spread follows what is sadly now a well observed pattern of exponential growth. The chart below shows how the first symptomatic level 11 case, the first blue box on the 25th February, was followed within 6 days by 7 more cases and then 7 days later another 68 cases. At which point the building was finally closed and the testing began.

 

The KCDC testing uncovered how concentrated the cluster had been on level 11 and how concentrated it was in a particular section of the call centre on that level. Below is the floor plan of level 11 which shows in blue the desks of the workers that contracted COVID-19. It is visually clear why the KCDC investigated the role of the ventilation system in the spread of the virus especially with so many of the cases in a section served by a common ventilator unit. 

  Floor plan of the 11th floor of building X. Site of a Coronavirus disease outbreak. Seoul, South Korea, 2020. Blue colouring indicates the seating places of persons with confirmed cases.