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Helen Branswell πŸ‡ΊπŸ‡¦ Profile picture
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Apr 1 β€’ 4 tweets β€’ 4 min read
1. A short #flu 🧡
@CDCgov reports flu activity is still ongoing and has picked up a bit in the NE and NW regions.
But let's put this in perspective. This increase is relative to earlier in this season, which was an incredibly mild season.
2. #Flu-like activity β€” which includes flu & a bunch of other respiratory bugs, but not #Covid β€” is still below baseline. In any other year we'd be talking about this season being effectively over.
3. The 2021-22 #flu season peaked in the last week of 2021 (left). The map on the right shows #influenza-like activity for the week ending March 26. There is some ILI activity, but not a ton.
4. There was, however, another pediatric #flu death reported to @CDCgov, the 14th this winter. The child died the week ending March 5.
Full FluView report is here: cdc.gov/flu/weekly/

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More from @HelenBranswell

Helen Branswell πŸ‡ΊπŸ‡¦ Profile picture
Mar 18
1. Short #flu 🧡.
Flu activity has ticked up in recent weeks. Typically the opposite happens now, but there's nothing typical about the 2020s.
People will argue mask doffing explains it. Maybe. But most of the increase is in the central/south central US - not big mask territory. Image
2. @CDCgov estimates that so far this season, 2.9M Americans have been sick with #flu, 28,000 have been hospitalized & 1,700 have died.
By any measure, this is a very light flu season. Image
3. While activity has increased, it's relative to earlier in the season. Influenza-like illness activity peaked this year over the Christmas holiday & has been below baseline for weeks now. Image
Read 4 tweets
Helen Branswell πŸ‡ΊπŸ‡¦ Profile picture
Feb 18
1. A #flu 🧡
@CDCgov has published flu data for the week ending Feb. 12. What is being seen nationally continues a trend that has been evident for several weeks β€” flu season peaked over the holidays & has been declining ever since. Red arrow points to this year.
2. #Flu is notoriously hard to predict; there could be late season activity yet to come. And @CDCgov says there are parts of the country where activity picked up a bit in the week ending Feb. 12. Not enough to make parts of this map turn red, though.
3. @CDCgov estimates 1,300 people have died from #flu this year in the US. That's very low. Most flu seasons kill between 12,000 & 52,000 people in this country.
One of the key reasons for this year's low death toll is the low rate of outbreaks in care facilities.
Read 6 tweets
Helen Branswell πŸ‡ΊπŸ‡¦ Profile picture
Feb 11
1. I asked @trvrb last fall whether he thought we'd have a regular #flu season this year. Trevor said he thought flu wasn't yet back to pre-pandemic levels & that this winter likely wouldn't be the year it came back with a vengeance. So far, it looks like he was right. 🧡
2. The latest FluView from @CDCgov shows that flu activity in the US continues to decline. (Latest report from @WHO suggests same is happening globally.) The arrow points to where things stand with influenza-like activity in the US right now. Image
3. There's always a possibility there will be more #flu later in the season. Flu B often rears its head in March or April. China has has a lot of flu B activity this winter, so maybe the Olympics will seed some of that elsewhere. But if not, flu season could end early.
Read 4 tweets
Helen Branswell πŸ‡ΊπŸ‡¦ Profile picture
Feb 4
1. I'm listening to some presentations to #ACIP on myocarditis associated with receipt of Moderna's Covid vaccine or mRNA vaccines in general.
CDC's Tom Shimabukuro was asked about deaths. He said there were 13 deaths reported, but so far none are thought to be vax-related.
2. @CDCgov is doing a study following up on people who reported myocarditis after mRNA vaccination. CDC's Ian Kracalik is presenting on that study now.
3. No surprise by now, most of the people reporting myocarditis after mRNA vaccination were young males.
Read 13 tweets
Helen Branswell πŸ‡ΊπŸ‡¦ Profile picture
Feb 4
1. An update on #flu in the US, with data from @CDCgov for the week ending Jan 29.
For the second year in a row the warnings of a "twindemic" of Covid & flu haven't come to pass. There will be winters when we have to deal with both. But this year we may have dodged that bullet.
2. Currently influenza-like activity is "below baseline." That could mean we've passed the peak of flu season for winter 2021-22. That said, #flu B activity often occurs late in the season β€” sometimes into March & April. So there could be more flu later.
3. @CDCgov estimates that 1,200 people have died from #flu this winter in the US. And it has received reports of 5 deaths of children. In most regular years, there are somewhere between 100 and 200 children who die from flu.
Read 6 tweets
Helen Branswell πŸ‡ΊπŸ‡¦ Profile picture
Feb 1
1. Amazing statistic: In the 10 weeks since Omicron was discovered, there have been 90M #Covid cases reported β€”Β more than in all of 2020, says @drtedros at today's @WHO press conference.
2. A dangerous narrative on the pandemic has taken root, says @drtedros. With the availability of vaccines & the transmissibility of Omicron, some are assuming the need to fight to reduce transmission is either unnecessary or futile. More infections will lead to more deaths.
3. @drtedros said the #SARSCoV2 virus remains dangerous and continues to evolve. @WHO is monitoring 4 subvariants of Omicron, he said.
Read 5 tweets

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