Close down all non-critical construction sites amid the nConv-19 pandemic.

UK is observing social distancing, schools and places where people gather are shut down. While construction sites, bringing together hundreds of workers remain open. Currently, workers are to wash their hands and self-isolate if they have symptoms. This approach isn't sufficient to prevent nConv from spreading as it can be passed-on during the incubation period or by asymptomatic carriers. Thus, common sense dictates that construction sites should also be put on-hold to suppress the pandemic.