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wnvyujlx t1_ixsuvzu wrote

https://pubmed.ncbi.nlm.nih.gov/13263486/ this study goes into a bit more detail how long it takes for a virus getting absorbed by a cell and how long it takes to create copies. Your guess with an afternoon isn't that far off. However, there's also a chance that a virus can be exhaled immediately after getting breathed in.

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Glaselar t1_ixtzvji wrote

> However, there's also a chance that a virus can be exhaled immediately after getting breathed in.

Technically that doesn't mean you're contagious; you just bounced a contagion from someone else back into the room for someone else to be a potential new host for instead.

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KauaiCat t1_ixus8z7 wrote

>However, there's also a chance that a virus can be exhaled immediately after getting breathed in.

Right, If exhaled immediately after breathing it in, it never deposited in your respiratory system to begin with.

Particles in the 0.3 micron diameter range are very evasive. They can follow stream lines around obstacles and they are too big to be influenced by diffusion (random motion of air molecules) so air molecules cannot "bump" them into a surface.

A droplet nuclei carrying virions in this size range could be inhaled and exhaled right back out. This size range is what an N95 is designed to filter out 95% of the time. For particles larger or smaller than 0.3 microns, an N95 filters more than 95%.

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