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15 Apr, 6 tweets, 2 min read
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
South
West
HCoVs are now back in every region after a full year hiatus.

229E and OC43 in the Northeast.

NL63 and OC43 in the other three regions.

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More from @kerpen

Phil Kerpen Profile picture
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… Image
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% Image
Read 26 tweets
Phil Kerpen Profile picture
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
Phil Kerpen Profile picture
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
Phil Kerpen Profile picture
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
Phil Kerpen Profile picture
9 Apr
Friday Fluday Thread: MMWR Week 13, ending April 3, 2021
United States Influenza testing, MMWR week 13.

CDC flu view. cdc.gov/flu/weekly/ind…

Five-year average: 3,853 cases; 15.33% positive

Last year: 708; 2.24%

This year: 20; 0.07%

docs.google.com/spreadsheets/d…
United States Influenza testing, season to date (27 weeks, MMWR 40 to 13)

Five-year average: 192,308 cases; 18.87% positive

Last year: 290,043; 21.47%

This year: 1,935; 0.15%
Read 29 tweets
Phil Kerpen Profile picture
7 Apr
CDC updated HCoV surveillance today. NL63 and OC43 continue to rise.
cdc.gov/surveillance/n…
Midwest.
cdc.gov/surveillance/n…
South.
Read 5 tweets

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