Isn't SK using cell phone location data to find out people who have been in 'contact'?
Yes, so is Singapore. I don't think we have that ability here. Those systems were already in place in both countries. We are essentially relying on people to individually determine if they have been exposed. How can they do that if they don't know if they have been exposed? It was reveled that an employee of Urbandale schools tested positive. That is unbelievably vague. Do you have every single person in the school district enter into a 14 day quarantine, including all teachers, students, admin workers, custodians and families of all those people? There is a 0% chance of getting everyone to adhere to it. Or do you inform the public exactly who the individual was so that people who were specifically around them know to quarantine themselves?
I read about a person in Wisconsin that tested positive weeks ago. They have since completely recovered and shared their recovery story "anonymously" since their name has still not been made public. This seems absurd to me. We are telling people to self isolate if they have been around someone who tested positive, but there is no way for them to know if they have been around someone who tested positive, other than relying on health and government officials to inform them. The same health and government officials that have been botching the country's response to this epidemic in the first place.
When a food product is deemed dangerous, they publicly announce recalls to quickly get the information out to the public who may have bought it. They don't search through past store sales and attempt to individually track down every single person that made the purchase, that would be incredibly inefficient and waste precious time.