#COVID19 and a tale of two gyms in a 🧵
Gyms are high risk situations since you are exerting and breathing in a lot more than you would usually do. Everything else remaining same, a gym could be 5 times more risky than a classroom 1/
Gyms are high risk situations since you are exerting and breathing in a lot more than you would usually do. Everything else remaining same, a gym could be 5 times more risky than a classroom 1/
3) Staff and clients got infected, they unknowingly carried the virus to a wide range of locations - grocery stores, homes, and workplaces
Final result 419 cases and counting
Final result 419 cases and counting
4) "195 clients and staff of the ... Gym ... have tested positive for the virus."
So, about an equal number of people infected beyond the gym as well, as of now
So, about an equal number of people infected beyond the gym as well, as of now
5) "primary cases are believed to have spread the virus to some 36 workplaces, including restaurants, grocery stores, offices, retail stores and construction sites"
all from one outbreak spot
all from one outbreak spot
6) "some clients who allegedly refused to get tested, despite developing symptoms or being exposed" - not the ideal behaviour but would we not prefer to not have the outbreak in the first place?
7) "...some clients weren’t respecting health measures. ... commented on the lax mask-wearing in the gym"
"... signs outlining the rules as well as Plexiglas barriers and hand sanitizer,... there were hardly any employees on the floor to enforce the rules."
"... signs outlining the rules as well as Plexiglas barriers and hand sanitizer,... there were hardly any employees on the floor to enforce the rules."
8) So, once again, the futility of Plexiglas...
Ultimately, is it all going to be blamed on behaviour of the users, in other words, contextual spread? (h/t @PrasadKasibhat1)
Ultimately, is it all going to be blamed on behaviour of the users, in other words, contextual spread? (h/t @PrasadKasibhat1)
9) "Dr. Gaston De Serres, an epidemiologist with the province’s public health institute, “gyms can be higher risk settings because people breathe heavily and expel more droplets.
he believes the degree to which people follow health measures is a more important factor"
he believes the degree to which people follow health measures is a more important factor"
10) I have no idea what droplets are being expelled due to breathing heavily. Why not just say you are likely to inhale more of the viral loaded particles since you are inhaling more as well?
11) Agreed user behaviour was not ideal but do we have better models for them? No. We continue to expound on the magical force fields from Plexiglas.
12) Gym owner believes he did all he could - "even though he questions the government's action plan, he has respected the sanitary measures from the beginning, first for the safety of his clients, but also out of obligation."
13) Now a starkly different case due to better controls and preparedness in place
insider.com/how-gym-preven…
insider.com/how-gym-preven…
14) "Dr. Linsey Marr, an expert in airborne viral transmission, is a member of the gym, and worked with the owner on gym policies to reduce the risks for athletes there"
@linseymarr to the rescue and kudos to the owner for listening to her and going beyond govt. dictum
@linseymarr to the rescue and kudos to the owner for listening to her and going beyond govt. dictum
15) "Owner Velvet Minnick implemented strict distancing, ventilation, and hygiene policies. At least 10 feet between athletes and lots of open doors"
Yes, that is 10 instead of the usual 6 feet
Yes, that is 10 instead of the usual 6 feet
https://twitter.com/linseymarr/status/1314261624044294146?lang=en
16) Exertion, deeper inhalation and exhalation demands more distance and ventilation to ensure dilution of viral loaded particles and mitigation
17) On-site ventilation estimates as per Prof. Marr
https://twitter.com/linseymarr/status/1314582969168920577
18) Just for reference, outdoors have around 415 ppm. So, steps were taken to keep the gym indoors at about the same level of air circulation and ventilation as outdoors!
https://twitter.com/linseymarr/status/1324823533587992578?lang=en
19) Ventilate, distance, and wear masks when possible. More exertion? Increase the above measures regarding distance and ventilation. The darn thing is #airborne and this understanding helps us mitigate better instead of having more incidents like the first Gym. \end
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