The idea that they are conducting in-depth investigations into individual cases of unexplained transmission shows an impressive level of commitment to contact t

The idea that they are conducting in-depth investigations into individual cases of unexplained transmission shows an impressive level of commitment to contact tracing and research. >Contact tracers turned to the country’s Epidemic Investigation Support System, a digital platform introduced in South Korea amid the pandemic that allows investigators to access cellphone location information and credit card data of infected individuals in as little as 10 minutes. (privacy nightmare, but at least it is being used for good) >CCTV recordings showed the two never spoke, or touched any surfaces in common — door handles, cups or cutlery. From the sway of a light fixture, he could tell the air conditioning unit in the ceiling was on at the time. >Lee and his team re-created the conditions in the restaurant — researchers sat at tables as stand-ins — and measured the airflow. The high school student and a third diner who was infected had been sitting directly along the flow of air from an air conditioner; other diners who had their back to the airflow were not infected. Through genome sequencing, the team confirmed the three patients’ virus genomic types matched.