A short period of time in close contact with an infected person (likely presymptomatic, so someone who seems perfectly healthy!) OR a longer period of time *distanced* but sharing the same air with an infected person -- BOTH of these scenarios can transmit the disease. https://twitter.com/CorsIAQ/status/1386023361998823425

This is why it is not simply enough to be indoors, unmasked, but keep your distance from "those who are worried." You can be sitting **across the room** from someone for an hour or two and still inhale their aerosols!

Mask up when inside. Move things outdoors, where the ventilation/air dilution is so effective that masks really aren't even necessary unless you're up in someone's face.

But for heaven's sake don't say "if people are worried about COVID they can just stay away from me while I do my thing." If you say this, you don't understand how aerosols work and you're not trying to.

People across the spectrum on COVID protocols are doing what feels intuitively right to them and what is emotionally preferable, but they're not basing their actions on science. This has got to stop! Evidence. Evidence. Evidence. Base actions on scientific evidence.