Earlier this month, the Centers for Disease Control and Prevention revised its guidelines on the COVID-19 virus, saying airborne transmission of infected particles – which can “linger in the air for minutes to hours,”
It can even occur between people spaced more than 6 feet (about 1.8 m) apart. Now a new simulation has surfaced showing how far the virus is spreading at the table.
The Japanese researchers did the simulation on a supercomputer called Fugaku examined a scenario, where four people are sitting at a dining table facing each other.
The study find out that by talking to the person sitting across from them, about 5% of the droplets reach the individual.
When you talk to the person sitting diagonally, only a quarter of the amount reaches the individual. Looking aside to speak to the person sitting right next to the individual, more than 25% of the droplets were transmitted.
They also looked at droplet transmission scenarios based on humidity levels. Interestingly, the scientists noted that fewer droplets were spread when the humidity was higher.
The demonstration is a rather crude but effective simulation of the dangerousness of a dinner without a mask. It’s also a great reminder of the importance of social distancing.