📍OUTBREAK OF #B117 AT SEVEN SCHOOLS—sudden outbreak of #COVID19 cases at a British Columbia 🇨🇦—all elementary and middle schools. Genetic sequencing shows #b117 in early cases linked to outbreak. Classes quarantined. All the schools still remain open. 🧵 cbc.ca/news/canada/br… ImageImage
2) British Columbia 🇨🇦 teachers are now incredibly worried by the latest sudden 7 school outbreaks, and demanding decisive actions.
3) British Columbia is having a major increase in transmission — and has the highest R in Canada 🇨🇦 currently.
4) A statement from the Surrey School District to parents says the strain detected at two of the schools was connected to positive cases dating back to Jan. 26 because testing for the variants takes longer than the standard COVID-19 test.
5) The three-week delay is too long, said Sarah Otto, a professor in evolutionary biology at UBC.

"We expect it to double every eight to 10 days, and so for every eight- to 10-day delay there's potentially twice as many other people who have caught it and not know about it.''
6) The Fraser Health statement says it is working to identify any more connected variant:

"The variant strain can transmit more quickly and easily but does not seem to cause more severe illness”

➡️ this is incorrect. #B117 is said by 🇬🇧 experts to increase severity as well.
7) Apparently, masks weren’t mandated at every school, according to @bctf.

Epic fail.
8) Recently, UK says #B117 variant can be 30-70% more severe than old common strains.
9) This BC follows the heels of two other notable school outbreaks in Austria and Denmark and kids surge in Israel.
10) The Danish multi school outbreak was also #B117 related.
11) As was the Italian village #B117 outbreak in which 60% of the infected were children.
12) This divergence in children also seen in the UK, despite general lockdown. After winter break, positivity in 5-9 year olds higher vs adults after primary partially schools reopening. This wasn’t seen last year at all.
13) These can no longer be dismissed as isolated stories. We know school reopening lead to rise in cases. We cannot delude ourselves on this!
14) Meanwhile, BC 🇨🇦 leaders downplay everything even as #B117 spreads and BC’s R is increasing, says @PennyDaflos.

15) BC schools are also atrociously **SCREWING SHUT WINDOWS** to prevent teachers from opening them for fresh air!!! Can’t make this insanity up—all while in middle of outbreak. cbc.ca/news/canada/br…
16) But that^ is exact opposite of what we need to do to stop school transmissions. We need more ventilation and air cleanings. Ventilation is the easiest and best. Air disinfection next best. See thread 🧵
17) Ventilation and air disinfection is just so critical for schools and any crowded places.
18) Another datapoint of pediatric case surge ever since schools reopened without mitigation in Iowa.
19) Another reminder we have known the coronavirus is airborne—long distance aerosol travel and aerosol infection means we need to take serious transmission in schools and prevent indoor dining.
20) And I agree with anxious and worried @bctf teachers... they need widespread rapid testing to stay ahead of outbreak before epidemics grow to multiple classrooms, grade levels, and schools.
21) Meanwhile.... another multi-school outbreak in Toronto that seems similar to BC #B117 school outbreak.
22) And the clearest evidence of school #COVID19 transmission of teachers and kids comes from Quebec... the evidence on schools is irrefutable.

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More from @DrEricDing

5 Mar
NEW—a report written by state health officials sent to Cuomo that described >9000 nursing home residents in New York had died of #COVID19, & not yet public, was rewritten by governor’s most senior aides to take it out, according to interviews & documents. nytimes.com/2021/03/04/nyr…
2) After the state attorney general revealed earlier this year that thousands of deaths of nursing home residents had been undercounted, Mr. Cuomo finally released the complete data, saying he had withheld it out of concern.
3) “But Mr. Cuomo and his aides actually began concealing the numbers months earlier, as his aides were battling their own top health officials, and well before requests for data arrived from federal authorities
Read 5 tweets
4 Mar
📍MORE KIDS PER HOUSEHOLD ➡️ MORE RISK OF #COVID19: Danish study of 3 million adults—Increasing number of children, means much higher risk of #SARSCoV2 in adults household members. By high much?

📌2 young kids—13% ⬆️ risk

📌3+ young kids—42% ⬆️ risk
medrxiv.org/content/10.110… Image
2) What about families with young kids but not older kids (age >6)? 31% ⬆️ increased risk

What about families with older kids but no young kids? Again, 31% ⬆️ increased risk. Image
3) Okay, what if we just look at households with young kids and no older kids? How does 2 or 3+ young kids compare versus 1 young kid?

📌Adults in households with 2 young kids: 22% ⬆️ risk of #COVID19

📌Adults in households with 3+ young kids: 54% ⬆️ risk of #COVID19 Image
Read 7 tweets
4 Mar
NARROW WIN— VP Kamala Harris breaks a 50-50 tie in the Senate to proceed with the #COVID19 relief bill... 51-50. This is how narrow the fate of America’s future to stop the coronavirus pandemic comes down to.

➡️ Elections matter damnit.
2) We are here because Biden and Harris listen to scientists! Our video last fall...
3) And because the other guy dismissed science and recklessly endangered millions of lives.
Read 4 tweets
4 Mar
UNDER-DIAGNOSIS IN KIDS—New CDC-study in Mississippi found actual number of kids infected with #COVID19 was much higher than testing reported.

How much?

📌68x in May 2020

📌12x in September

The old “almost no kids risk” studies outdated. Kids transmit.
cdc.gov/mmwr/volumes/7… Image
2) “Serologic testing of residual blood specimens collected during May–September 2020, from 1,603 persons aged <18 years suggested that approximately 113,842 (16.3%) of 698,420 young persons in Mississippi might have been infected with SARS-CoV-2 by mid-September 2020.”
3) Contrast... only 8,993 confirmed and probable COVID-19 cases among young persons had been reported to the Mississippi State Department of Health by August 31.

8993 reported vs 113,842 likely pediatric cases.
Read 7 tweets
4 Mar
📍~64% MORE SEVERE—The already more contagious #B117 variant from 🇬🇧 is now found to increase risk of #COVID19 hospitalization by 64% versus other strains, says Denmark’s 🇩🇰 CDC. Denmark sequences every cases—their data is the best, & now most worrisome.🧵 papers.ssrn.com/sol3/papers.cf… Image
2) Notably, “The adjusted odds ratio was increased in all strata of age and calendar time.” (Regardless of time period & regardless of age group).
3) Conclusion: “Infection with B.1.1.7 was associated with an increased risk of hospitalisation compared with other lineages.”

➡️ “This finding may have serious public health impact in countries with spread of B.1.1.7”
Read 4 tweets
4 Mar
New—Germany's vaccine commission has approved the use of the Oxford-AstraZeneca jab for age>65. Recent studies now enough data to approve it for all ages. "new data also shows that the vaccine is even more effective when [doses 12 weeks apart]. 🧵 #COVID19
bbc.com/news/world-eur… Image
2) And indeed, the Oxford-AstraZeneca vaccine seems on par with Pfizer in mass vaccination studies. Not too shabby. economist.com/graphic-detail…
3) Here I walk people they the data on the 12 weeks being the best time gap between 1st and 2nd shot of the Oxford vaccine. That said 12 weeks has not been tested for Pfizer or Moderna ones.
Read 4 tweets

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