#Arlington #COVID19 #Cases

😡: Almost no students who are exposed are being told directly of exposures or quarantined.

We encourage parents w/COVID+ kids to DIY your own reporting to parents and families where you can; assume APS isn't going to notify exposed. It's up to you. Image
#Arlington #COVID19 #Cases

The worst school, with >13% of its students catching COVID in Jan, is #Montessori Public School.

MPSA was found to be one of the worst schools for ventilation + parents reported a lack of implementation for outdoor lunch in Jan. for some classes. ImageImage
#Arlington #COVID19 #Cases

So far, YTD, two dozen Arlington public schools have had more than 10% of their student body test positive for COVID-19.

In such an environment, removing masks when community transmission is so high seems like the ultimate folly. Image
#Arlington #COVID19 #Cases

In fact, there should be hard questions asked about the schools that have had such high numbers, and if enough has been done to mitigate spread within them.

If a school does not address problems when ~14% of kids get sick w/COVID, something's wrong.
#Arlington #COVID19 #Cases

One last chart to show the burden of COVID-19 in APS schools in the 2022 #Omicron surge. (The last week still lacks some data, but we hope this has peaked and cases continue to decline; during a surge, we need strong mitigations.) Image
#Arlington #COVID19 #Cases

The chart looks out of control, but it could have been worse. We need:
#APSOutdoorLunch
#HEPA filtration at 6 ACH to remove >90% of particles 2x per hour
#BetterMasks
Better #OutbreakManagement
⬆️#Testing
⬆️#Vaccination
County #WastewaterSurveillance
#Arlington #COVID19 #Cases

As crisis subsides here — we hope — we should look at how we could be prepared for the next wave or variant. We have no reason not to expect a repeat surge next fall or Jan. 2023. Preparation, with common sense precautions for surges, will be needed.
#Arlington #COVID19 #Cases

Finally, cases are still more than 15 times higher than when we began school. So now is still NOT the time to remove mitigations. We need to make sure this surge is over, and our community transmission rates return to low, and follow the CDC.
#Arlington #COVID19 #Cases

Here's a look at our peak in cases, from APS and Arlington County/VDH reporting, and broken down via school. (Snapshot as of Jan. 30th reports.)

We doubt we'd see this decrease without mitigations— including universal masking — to keep schools open. Image

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More from @smartrestartaps

Dec 18, 2021
CDC is recommending #TestToStay. But focuses only on the unvaccinated. Breakthrough cases of vaccinated people jumped 64% suddenly recently in Northern Virginia. We need to ramp up RAPID testing for ALL kids, vaxed and unvaxed, who are exposed to COVID.
Short additional 🧵: There are important qualities of such a #TestToStay program that APS would need to emulate. Can't pick and choose, get same results.

#1 - The kid who got exposed limited exposure b/c both parties WORE MASKS. Eliminate masks, gotta quarantine 'cuz certain 🤮.
#2 - No symptoms ever developed. Had to agree to either 2 (LA) or 4 (Lake County) tests, or go quarantine at home.

#3 - For "close contact" #TestToStay kids, mask wearing was required everywhere: indoors, outdoors, on bus. They didn't go to extracurriculars or after school care. Image
Read 8 tweets
Aug 23, 2021
1/ It would be easy to call out some of the schools that have done little for #APSOutdoorLunch, because they have a "can't do" attitude. But today, we're going to call out some of the bright points. Hope to see more of the "can do" attitude across APS, like these examples:
2/ Kenmore 2020-21: Cafeteria staff noted that #APSOutdoorLunch has turned out to be more organized, more relaxed, quieter, less stressful, and less restricted for them and for students. Thanks @apskenmore for keeping our kids safe!
3/ Barcroft 2020-21: The community @BarcroftEagles came together to keep students safe: donated yoga mats, sit-upons, and stumps made #APSOutdoorLunch a fun part of the day last spring.
Read 16 tweets
Aug 22, 2021
1/ Risk reduction in a room that has at least 5 air changes per hour. @APSVirginia, another study shows how layered mitigations work. We need to add True HEPAS to rooms *now* to #CleanTheAir, and boost filtration, because #DeltaVariant is far more infectious.
2/ The blue line👆 is where most APS rooms are, if not WORSE for about 1/3 of our rooms. APS chose the most minimal goal it could (4 ACH). We haven’t prioritized providing the same BETTER 6ACH ventilation for all kids.

@APSVaSchoolBd, please ask for #6ACHforAll & #AirEquity!
3/ APS’ ionizers produce 20% less extra clean air, so they’ve underestimated ventilation.

They’ve doubled capacity, which means now 1/2 the clean air for each student returning to school in a week, against #DeltaVariant, which is 2x more infectious.

Read 6 tweets
Aug 22, 2021
1/ Regarding music classes, @APSArts, students who participate in indoor singing were 2.8 times MORE likely to get #COVID19 in Omaha schools study. Also, air samples from choir rooms contained virus, even w/ kids singing in masks.
medrxiv.org/content/10.110…
2/ CDC: "High-risk extracurricular activities are those in which increased exhalation occurs…” CDC recommends activities be canceled or held virtually (unless ALL participants are fully vaccinated) when a community is in high transmission.
cdc.gov/coronavirus/20…
3/ APS, go outside to sing; it’s best and requires little to no mitigation!

Best resource so for performing #arts and #COVID19, including other recommendations for band and orchestra 👇

Caveat: #DeltaVariant requires extra precautions, not minimums!

nfhs.org/articles/retur…
Read 8 tweets
Aug 21, 2021
1/ #CO2monitors: How cool! San Diego Unified put CO2 monitors and particle counters in schools to monitor #ventilation and #filtration — making sure it was adequate to prevent the spread of COVID-19 in every room.

Using science + data to target and actually fix problems!
👏👏
2/ Here's a great thread 🧵 explaining how this works.

3/ We asked @APSVirginia and @APSReady to strengthen reopening plans, to rise to challenge of #DeltaVariant. Conference of 1,000 experts + education advocates this week outlined best ideas.
(@kprather88 describes San Diego effort.👇)
#DeltaSchoolsAirborne

Read 10 tweets
Aug 21, 2021
1/ This is why we need to #AlertTheClass, and the lack of mandatory #COVID19 #testing for all in place before opening #schools here may be a big mistake.

The #DeltaVariant is surging in #Arlington County, but the people who spread it "feel just fine."

nature.com/articles/d4158…
2/ #Delta's #KillerAdvantage:

Infected folks spread 🦠 for 1.8 days before they ever get first symptom.

Symptoms show up 5.8 days AFTER infection, on average, says Hong Kong research team.

Spreaders also have far higher viral load.
74% infections from presymptomatic spread
3/ One bit of good news in this: Vaccinated individuals were 65% less likely to infect someone, but the estimate is based on a very small sample size.
Read 8 tweets

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