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TLDR: The virus tends to get spread in confines spaces (presumably, though not confirmed, airborne with a low infectivity per virion). The more people in a conf

TLDR: The virus tends to get spread in confines spaces (presumably, though not confirmed, airborne with a low infectivity per virion). The more people in a confined space (meatpacking plant, prison, care facility, etc), the larger the outbreak.

YZF 6y ago
I thought the tl;dr was we don't know for sure and we need to collect more data. "But the question remains — beyond these known clusters, how did the tens of thousands of Californians who aren’t accounted for in publicized major outbreaks become infected?" ... "“We don’t know if people just going to parks or beaches, just sort of casual social gathering, contribute a whole lot to infections,” Riley said. Public health officials “really need to identify the high-transmission settings and then target those and not have these unfocused measures on social distancing.”"
- kangaroozach 6y ago
  Good point
bsder 6y ago
The tl;dr is "groups in indoor spaces, including family gatherings, are known bad". Other things seem to be less important, but we haven't sorted them out yet and we still have a large chunk of cases whose transmission can't be accounted for. The real problem is that this means that schools and colleges are now proven known bad. What are we supposed to do come September?
- WalterBright 6y ago
  One possibility is better ventilation. Open windows, install HEPA filters on the HVAC system, run the HVAC circulation fans continuously rather than intermittently, rejigger the HVAC system to pull air from outside rather than recirculate internal air.
  - AdrianB1 6y ago
    The virus is transmitted from person to person in close proximity, not through long distance airborne dispersion. If you have someone coughing 1 meter away the filtering and ventilation do not matter, except that a strong ventilation can carry the particles on a longer distance, increasing the risk of transmission.

YZF 6y ago

I thought the tl;dr was we don't know for sure and we need to collect more data. "But the question remains — beyond these known clusters, how did the tens of thousands of Californians who aren’t accounted for in publicized major outbreaks become infected?" ... "“We don’t know if people just going to parks or beaches, just sort of casual social gathering, contribute a whole lot to infections,” Riley said. Public health officials “really need to identify the high-transmission settings and then target those and not have these unfocused measures on social distancing.”"

kangaroozach 6y ago
Good point

bsder 6y ago

The tl;dr is "groups in indoor spaces, including family gatherings, are known bad". Other things seem to be less important, but we haven't sorted them out yet and we still have a large chunk of cases whose transmission can't be accounted for. The real problem is that this means that schools and colleges are now proven known bad. What are we supposed to do come September?

WalterBright 6y ago
One possibility is better ventilation. Open windows, install HEPA filters on the HVAC system, run the HVAC circulation fans continuously rather than intermittently, rejigger the HVAC system to pull air from outside rather than recirculate internal air.
- AdrianB1 6y ago
  The virus is transmitted from person to person in close proximity, not through long distance airborne dispersion. If you have someone coughing 1 meter away the filtering and ventilation do not matter, except that a strong ventilation can carry the particles on a longer distance, increasing the risk of transmission.