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Sam Kaufman Profile picture
@uhwuhna
Sep 9, 2020 • 7 tweets • 7 min read • Read on X
ON school COVID testing update, Sep 8, plague year 1. Lecce: on-site testing if request by PHU, asymptomc testing of high school sutdents. Yaffe: believes there are plans to increase capacity, but we don't need it. Discussions re asymptomatic testing ongoing. #unsafeseptember 1/
Dissonance anyone? How could Yaffe think there's no need for extra capacity with fall coming and standing advice to get tested with any symptom? (Ford sez test!) Why doesn't she know if it's being increased? Lecce's asymptomatic testing plan clearly not firmed up in her view. 2/
Meanwhile, on ground sightings in at least one Toronto hospital of saliva being collected alongside swabs. Recent public health comments to media about pooled testing being validated. Are these pools saliva pools? It's all very woo-woo. 3/
Meanwhile, the feds say home tests can be evaluated by Health Canada, but no applications listed so far. Several antigen point of care tests being evaluated - Abbott, Quidel, BD. Ontario supposedly has some Abbotts. Are these part of Ontario's mystery plans? 4/
Hope some media can get to the bottom of this. @imgrund @DFisman @adamsmiller @theresaboyle @LaurenPelley @EdTubb @krushowy @ColinDMello @richardwarnica @TinaYazdani @carlyweeks @sharon_kirkey @Megan_Ogilvie @calphonso @Travisdhanraj @jyangstar @kellygrant1
@Sue_Innovates @drmwarner @IrfanDhalla @ASPphysician @robertbenzie @DocDominik @jkwan_md @Billius27
@PHealthGnome

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More from @uhwuhna

Sam Kaufman Profile picture
Nov 23, 2023
The latest Public Health Ontario Covid-19 Wastewater surveillance report is quite alarming. Off-the-charts in Central East, Central West, and South West, and near/over last winter's peaks everywhere else besides North East. publichealthontario.ca/en/Data-and-An…
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Where is @TOPublicHealth, @epdevilla in letting people know what the situation is? Where is @SylviaJonesMPP? Where is Dr. Kieran Moore? Even a reminder to ventilate any gatherings would be helpful at this point....
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Read 9 tweets
Sam Kaufman Profile picture
Oct 2, 2022
Why are Ontario's medical officers of health currently, in the face of another fall Covid wave, unwilling to use s.22 orders, for example to compel (rather than simply recommend) masking in schools and other essential services?
1/7
Afraid of losing their jobs? MOH jobs have salaries in the $300k range, but these highly qualified MD administrators should have no problem finding other work. Barring extreme personal situations (mob debts, drug problems, 12 kids) they can deal with temporary unemployment. 2/7
Do they think s.22 orders will be ineffective? The record suggests otherwise. People masked when told they had to & stopped when they were told they didn't. Orgs like school boards and businesses are the same. Clearly recommendations alone have been ineffective since March. 3/7
Read 7 tweets
Sam Kaufman Profile picture
Oct 9, 2020
Dear @tdsb, @TDSBDirector ; I know the province has screwed you over. But we're all in this together, and here are some immediate, low-cost steps within your power to reduce the spread of Covid-19 in schools. Given high community spread in Toronto, speed is of the essence. /1
First, pls accept the premise that Covid-19 is spread significantly by aerosols, small fluid droplets that float in the air like smoke. While transmission by fomites (particles on surfaces you touch) is possible, this has not been shown to be the dominant mode of spread. /2
This means that while all the effort put into sanitizing is not for nothing, it's not enough to make schools safe. Aerosols *build up* in poorly ventilated rooms. (For an up-to-date overview of evidence for aerosol spread, see this recent presentation: ) /3
Read 16 tweets
Sam Kaufman Profile picture
Aug 24, 2020
Twice weekly saliva testing at U Illinois, which does 10,000 tests/day. IL does 2x tests per cap as ON (50k/day). We could do 2x weekly pooled tests of every classroom in the province with an extra 25k tests/day (2.2 million T+S * 0.8 attend /20 per class/3.5 d) @BogochIsaac
@CPHO_Canada @PublicHealthON @PattyHajdu @fordnation @Sflecce @celliottability @TOPublicHealth
Pooling could get us there with no new testing capacity given low current positivity rate. Just pool all tests (not just schools)! Pools of 10 at 1% positivity replaces 100 tests with 20 on avg (10 original pools, plus 10 for the expected positive pool). Pooling adds overhead tho
Read 4 tweets
Sam Kaufman Profile picture
Aug 2, 2020
0/16 Schools & COVID tests, thread. @imgrund @deonandan @DFisman @AshTuite @BogochIsaac @AmyGreerKalisz @celliottability @Sflecce @fordnation @joe_cressy @EdTubb @parentaction4ed @kellygrant1 @JohnTory @LaurenPelley @janephilpott @CPHO_Canada @PattyHajdu @jkwan_md @JustinTrudeau
1/16 We face a risky experiment with school openings in Canada in September. Recent evidence from summer camps in Canada and the US have suggested that COVID-19 can spread easily among children. Studies of viral RNA load in children reinforce this presumption.
2/16 While schools may implement a variety of precautionary measures - including masking, distancing, and cohorting - for most schools, proactive testing is not among them.
Read 19 tweets

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