Japanese computer simulation: not wearing a mask 1 meters of conversation infection rate 100%

2022-06-06 0 By

Japan’s RIKEN has used a supercomputer, Fugaku, to simulate the transmission patterns of Novel Coronavirus droplets.According to the analysis, if you talk to an infected person within one meter without wearing a mask, the chance of infection is 100 percent.Close contact and conversation with an infected person still increases the risk of infection.NHK reported that on February 2 local time, a team of researchers released the results of a supercomputer simulation analysis, even wearing masks, close contact and conversation with patients infected with the Omicron variant of the virus will still increase the risk of infection.According to the analysis, if you talk to an infected person within one meter without wearing a mask, you have a 100 percent chance of contracting Delta or Omicron.That means prolonged close communication with other people at dinner parties, for example, poses a high risk of novel coronavirus infection.The researchers used the supercomputer Tomiake to simulate the transmission of Novel Coronavirus droplets.The simulation, based on past cluster infections, assumes that the Omicron variant is 50 percent more infectious than the Delta variant.The results showed that the average infection rate was almost zero when a person wore a mask and talked with an Omicron variant infected person for 15 minutes at a distance of 1 meter or more.In addition, 40 percent of those sitting next to someone infected with the virus wearing a mask had an infection rate.However, if an infected person is not wearing a mask, the number of people nearby increases to 50 percent.Researchers have found that keeping a distance helps reduce the risk of infection.If people wear masks and keep enough distance, the risk of infection during school hours should remain low.Team leader Mayu Tsukura said that in addition to wearing masks, it was also important to think about the time and distance at which people touch or talk to others.Supercomputer Fuyue, which simulated the amount of droplets people inhale during a conversation and the amount of virus entering the body, found that even wearing a mask and talking to an omicron infected person at a distance of 50 centimeters for 15 minutes, the risk of infection is 20 to 30 percent.Fuyue, a supercomputer, simulated the infection of 15 to 16 people in a small restaurant and found that the risk of infection can be effectively reduced if air conditioners and fans are properly used to improve air circulation.When combined with partitions, the risk of infection was reduced by another third.However, the risk of infection is still increased in close proximity to patients because of barriers to air circulation.The team urges caution even when wearing masks, and that when talking to others, it is best to keep your distance and keep contact as short as possible.(Zhang Lirong)