There are already numerous documented examples of COVID-19 spreading in care homes. Nurses some times get sick. Then you have admin staff, deliveries and their

There are already numerous documented examples of COVID-19 spreading in care homes. Nurses some times get sick. Then you have admin staff, deliveries and their drivers, visitors, other engineers brought on site like electricians or cable guys. You only need one person to badly wash their hands or forget to wipe down their deliveries for the whole care home to become a petri dish.