Så snabbt kan du få covid-19 via luften
“This is how quickly you can get covid-19 through the air”
This is how quickly you can get covid-19 through the air
As air relative humidity increases, infectivity of SARS-CoV-2 decreases within water droplets | QRB Discovery | Cambridge Core
“we identified a threshold of ≥40% relative humidity as most effective in diminishing SARS-CoV-2 infectivity.”
we identified a threshold of ≥40% relative humidity as most effective in diminishing SARS-CoV-2 infectivity.
Comparing strategies for the mitigation of SARS-CoV-2 airborne infection risk in tiered auditorium venues
study on COVID-19 in auditoriums found displacement ventilation minimized infection risk, while natural ventilation had highest spread.
Masks, shorter events, and lower occupancy helped reduce risks.
Can the infection risk in elevators be negligible? A comparative study of airborne infection probability in elevators and conference rooms
“this study investigated the airborne transmission of respiratory diseases in the hospital elevator by comparison to the conference room.”
“The results showed that the infection probability in the elevator with 5 min was higher than that in the conference room with 50 min.”
I posted this this morning, then deleted it, then thought about posting it, then thought not... but here it is:
“Just so people reading this know:
When you have covid, you exhale covid particles into the air. Even with just ordinary breathing.
Those particles can then float on the air for hours.”
Opinion: What you should know about COVID this fall
“How is COVID-19 spread? When people cough, sneeze or talk, viral particles can be sent through the air and via droplets. Masking helps to prevent droplet spread, and keeping more than two metres apart and staying in a well-ventilated area can help to limit aerosol spread.
While not a predominant cause of transmission, COVID-19 can also be spread through objects contaminated with secretions from an infected person. The incubation period for COVID-19 — the time from exposure to developing an infection — is about two to four days with the current variant.”
Outbreak investigation of airborne transmission of Omicron (B.1.1.529) - SARS-CoV-2 variant of concern in a restaurant: Implication for enhancement of indoor air dilution
In May of 2021, Hong Kong required air purifers be placed in their restaurants after papers like this showed that you could be infected in just 19 minutes, median exposure time 34 minutes, while eating at a restaurant.
CFD modeling of reactive species air cleaner applications in a classroom
How do we safely turn indoor air itself into a disinfectant?
This study is the first responsible step forward to answering that question:
What would an adequate COVID response look like?
“Refusal to directly communicate 1) how COVID spreads 2) that it can be avoided 3) how it can be avoided while modeling mitigation, makes pandemic communications much more difficult for vulnerable people, activists and marginalized groups attempting to reduce disease burden in their communities. We should not be swimming against the current of public health officials’ poor pandemic hygiene.”
Refusal to directly communicate 1) how COVID spreads 2) that it can be avoided 3) how it can be avoided while modeling mitigation, makes pandemic communications much more difficult for vulnerable people, activists and marginalized groups attempting to reduce disease burden in their communities. We should not be swimming against the current of public health officials’ poor pandemic hygiene.
The 60-Year-Old Scientific Screwup That Helped Covid Kill
Oops! Looks like Covid IS airborne, folks.
“All pandemic long, scientists brawled over how the virus spreads. Droplets! No, aerosols! At the heart of the fight was a teensy error with huge consequences…”
All pandemic long, scientists brawled over how the virus spreads. Droplets! No, aerosols! At the heart of the fight was a teensy error with huge consequences.
COVID patients breathe large amounts of virus early on
COVID patients breathe large amounts of virus early on
COVID patients exhale high numbers of virus during the first eight days after symptoms start, as high as 1,000 copies per minute, reports a new Northwestern Medicine study.