3 ms·
If you were being at all honest about looking for evidence of transmission from incidental contact, here's an interesting study from Korea[0] revealing COVID-19
by pwinnski 6y ago
If you were being at all honest about looking for evidence of transmission from incidental contact, here's an interesting study from Korea[0] revealing COVID-19 transmission in only five minutes from more than six feet away. Indoors, in this case, but an actual bonafide case that suggests airflow is airflow, and being outside might or might not be the magic we all hope it is.
0. https://twitter.com/zeynep/status/1334641685154902021 https://twitter.com/zeynep/status/1334641685154902021 links to https://jkms.org/DOIx.php?id=10.3346/jkms.2020.35.e415 https://jkms.org/DOIx.php?id=10.3346/jkms.2020.35.e415
- hnrodey 6y agohttps://jkms.org/DOIx.php?id=10.3346/jkms.2020.35.e415 https://jkms.org/DOIx.php?id=10.3346/jkms.2020.35.e415 is about a study on indoor dining and airflow and how infections occurred at a distance > six feet because of direct airflow from the infected to the infectee. Here's the conclusion from the study that was linked: "Droplet transmission can occur at a distance greater than 2 m if there is direct air flow from an infected person. Therefore, updated guidelines involving prevention, contact tracing, and quarantine for COVID-19 are required for control of this highly contagious disease." Walking by someone is an interaction measured in seconds. If that person is infected and shedding via aerosol then a plain cloth mask does not offer much protection. The cloth mask would offer some level of protection if the infected was shedding via droplets from sneeze/cough/etc. If there's direct evidence that wearing a mask on my walk around the neighborhood offers significant benefits then I will reconsider. To this point, I just haven't seen anything that supports this behavior.