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What does a mask do? Blocks respiratory droplets coming from your mouth and throat.
Two simple demos:
First, I sneezed, sang, talked & coughed toward an agar culture plate with or without a mask. Bacteria colonies show where droplets landed. A mask blocks virtually all of them.
Two simple demos:
First, I sneezed, sang, talked & coughed toward an agar culture plate with or without a mask. Bacteria colonies show where droplets landed. A mask blocks virtually all of them.
What about keeping your distance?
Second demo: I set open bacteria culture plates 2, 4 and 6 feet away and coughed (hard) for ~15s. I repeated this without a mask.
As seen by number of bacteria colonies, droplets mostly landed <6 ft, but a mask blocked nearly all of them.
Second demo: I set open bacteria culture plates 2, 4 and 6 feet away and coughed (hard) for ~15s. I repeated this without a mask.
As seen by number of bacteria colonies, droplets mostly landed <6 ft, but a mask blocked nearly all of them.
I'm aware that this simple (n=1) demo isn't how you culture viruses or model spread of SARS-CoV-2.
But colonies of normal bacteria from my mouth/throat show the spread of large respiratory droplets, like the kind we think mostly spread #COVID19, and how a mask can block them!
But colonies of normal bacteria from my mouth/throat show the spread of large respiratory droplets, like the kind we think mostly spread #COVID19, and how a mask can block them!
1/ @SickKidsNews released guidance today about school reopening. Colleagues, mentors +caregiver advocates among co-authors. I was not involved in its development, and can appreciate concerns raised re: content and comprehensiveness. A few thoughts as peds + ID/IPAC physician:
@SickKidsNews 2/ This was a summary of current published evidence + #IPAC principles to consider w/school reopening, and would've benefited from ON-specific data - BUT we couldn't routinely test sx'ic kids for MONTHS unless they were admitted. Huge gap in knowledge of provincial epi.
@SickKidsNews 3/ Clinicians are trusted sources of knowledge + community partnership; we have a role in knowledge translation. Need scientists at table to dissect real-time data + model impact of strategies (screening/cohorting/shielding) to inform dynamic approach ie responsive to local epi.
1/Rise and shine, it's time for:
Coronavirus Tweets From the Experts, 5/24/2020
twitter.com/Noahpinion/lis…
Coronavirus Tweets From the Experts, 5/24/2020
twitter.com/Noahpinion/lis…
2/Case growth appears to be rising again in rural America.
3/See also:
1/Nothing could be a better use of your Friday night than reading:
Coronavirus Tweets From the Experts, 5/22/2020
twitter.com/Noahpinion/lis…
Coronavirus Tweets From the Experts, 5/22/2020
twitter.com/Noahpinion/lis…
2/One more reason it will take a long time to know if reopening caused cases to increase
3/Tell all your friends they can stop panicking about reinfection.
