Phil Kerpen Profile picture
18 Apr, 8 tweets, 3 min read
Schools update from @BurbioCalendar:

% US K-12 students attending "virtual-only" schools = 9.4% (from 12.2% last week)
% US K-12 students attending "traditional" in-person/every day schools = 62.4% (from 59.4%)
% US K-12 students attending "hybrid" schools = 28.2% (from 28.4%)
Just 1.8% of districts are now virtual only, but they hold 9.4% of students. Image
"Several large California districts announced intentions for full-time in person next year, but with qualification language and emphasis that is unique to California." Image
CDC's latest guidance (which uses community incidence as a trigger contrary to CDC's own science) is causing closures again in New York. Image
Burbio in-person learning by state averaged over the whole school year. Image
Same chart, in-person over the whole school year.

Color-coded by me: red = Republican governor.

Booby prize to @LarryHogan. Image
Learning plan by grade level. Image
Image

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More from @kerpen

19 Apr
Did the White House put out the word to its journalistic foot soldiers to prep the ground for a 100 days declaration that says now we can end outdoor masking... but re-up for another 100 days inside?
Read 8 tweets
16 Apr
Friday Fluday Thread: MMWR Week 14, ending April 10, 2021
United States Influenza testing, MMWR week 14.

CDC flu view. cdc.gov/flu/weekly/ind…

2016 to 2019 4-year average: 3,407 cases; 15.4% positive
2020: 215; 0.95%
2021: 15; 0.05%

docs.google.com/spreadsheets/d…
United States Influenza testing, season to date (28 weeks, MMWR 40 to 14)

Five-year average: 197,308 cases; 18.80% positive

Last year: 291,269; 21.02%

This year: 1,965; 0.15%
Read 26 tweets
15 Apr
CDC has added another week of HCoV surveillance. HCoV-NL63 has turne back up and HCoV-OC43 has continued to rise sharply. HCoV-229E rise continues too.
cdc.gov/surveillance/n…
Midwest
Northeast
Read 6 tweets
13 Apr
A rare side effect seen with all the vaccines, but a pause only for the one from the family company of Trump's UK ambassador. It's not great optics.
VAERS results for "DVT" or "thrombosis."
The great @foogatwo got the same numbers from VAERS that I did, so I did the search right.

And she helpfully divided by doses.

Read 4 tweets
13 Apr
This study found live, replication-capable virus in only 31% of PCR positives, with PCR-positive children half as likely as PCR-positive adults to have live virus.

Why are we still using poorly calibrated EUA tests???

cmaj.ca/content/early/…
This table show sensitivity and specificity for children by cycle threshold.

A cutoff of 23 would capture 97.2% of infectious positives.

The 35+ CT "positives" we include are less than 4% likely to be replication-capable.
Same table for adults.
Read 4 tweets
11 Apr
Schools update from @BurbioCalendar:

% US K-12 students attending "virtual-only" schools = 12.2% (from 14.4% last week)
% US K-12 students attending "traditional" in-person/every day schools = 59.4% (from 55.3%)
% US K-12 students attending "hybrid" schools = 28.4% (from 30.3%)
Only 2.5% of school districts are now virtual-only, but they hold 12.2% of all students.
K-5 Students:

9% attending virtual-only schools (from 11.3% last week)
23.5% attending schools offering hybrid (from 24.8%)
67.5% attending schools offering traditional (from 63.9%) Image
Read 6 tweets

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