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Helen Branswell 🇨🇦 Profile picture
@HelenBranswell
Sep 10, 2021 • 7 tweets • 5 min read • Read on X
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1. Being as it's Friday, there will be a #flu update from @CDCgov later this morning. I'll add to this when it comes out.
Just looking at the weekly Covid & #influenza report from @PHE_uk. In a normal flu season, one might see a little flu activity in early Sept. Nope. Image
2. @CDCgov's FluView is up. Actual confirmed cases of #flu remain very low. There is, however, a fair amount of influenza-like illness, or ILI, activity. The report suggests it may have plateaued among 0-4 & 5-24 yr olds. Will be interesting to watch this, now that school is in. Image
3. @CDCgov reports another 2 cases of infection with swine #flu viruses have been detected, both in Iowa. Neither was sick enough to need hospital care; both recovered. Both had traceable links to pigs. Image
4. These new swine #flu cases bring to 9 the number detected in the US so far this year. Nothing strange about this number. 3 different swine flu strains involved; cases seen across 4 states. Image
5. @CDCgov has to report all human swine flu cases to @WHO. The world keeps an eye out for human infections with non-human flu viruses because of their pandemic potential. The 2009 H1N1 pandemic was caused by a virus that jumped from pigs to people.
6. @CDCgov says none of the 9 cases detected so far this yr involved human-2-human transmission (a good thing). But the link to swine for at least some of the cases seems to leave that possibility open. One of this week's cases, for instance, lived with people who cared for pigs. Image
7. It's impossible to know at this point when #flu activity will resume here. There is definitely some flu transmission in some parts of the world, but it remains at historically low levels. This week's FluView shows no signs of it picking up here yet. cdc.gov/flu/weekly/ind…

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More from @HelenBranswell

Helen Branswell 🇨🇦 Profile picture
Apr 26
1. @USDA posted an FAQ today about the federal order restricting movement of dairy cattle infected with
#H5N1 #birdflu. Interesting information therein.
A 🧵
New to me: USDA says 8 poultry operations in 5 states have had poultry outbreaks with the virus detected in cows. Image
2. Minnesota hasn't reported #H5N1 #birdflu in cattle, but it has had at least 1 poultry outbreak with the cattle virus, @USDA reveals. More evidence, probably, that the virus is far more widely spread than has been realized. The FAQ is here: aphis.usda.gov/sites/default/…
3. The federal order on the movement of dairy cows goes into effect 4/29. @USDA is setting what looks like an ambitious timeline for processing of tests, especially "non-negative" tests that must then go for confirmatory testing at the USDA lab in Ames, Iowa. #H5N1 #birdflu Image
Read 7 tweets
Helen Branswell 🇨🇦 Profile picture
Apr 25
1. Listening to an @ASTHO - @IDSAInfo - @CSTEnews webinar on #H5N1 #birdflu in cows.
Of interest so far:
— @USDA is monitoring feral swine; no detections of H5 so far.
— in the "small number" of samples tested to date, doesn't look like cows are shedding virus thru feces.
2. @USDA Rosemary Sifford said the infections are "mostly" being seen in lactating herds.
1 herd was found to be positive despite the fact there were no clinical signs among the cows.
Sifford said USDA doesn't yet know how long infected cows shed virus.
#H5N1 #birdflu
@USDA 3. Sonja Olsen from @CDC says there've been 6 infections detected in cats on dairy farms. Not sure I've seen the exact number. #H5N1 #BirdFlu
Read 16 tweets
Helen Branswell 🇨🇦 Profile picture
Apr 19
1. A 🧵 on #flu, #Covid & #RSV (mostly flu). The
#influenza-like illness season is pretty much over. The percentage of people seeking care for ILIs is below 2.9%, that dotted line. You can catch flu at any time of the year, but chances of catching it now thru the summer are low. Image
2. It's not just #flu. #Covid activity now is at low levels nationally and #RSV activity has declined to the point where @CDCgov says the season is ending. Hallelujah.
cdc.gov/respiratory-vi…
Image
3. It hasn't been a particularly bad #flu season, but the estimated number of hospitalizations for flu has been pretty high — one of the highest in recent years. (red line) The 2017-18 season, which was harsh, was worse. CDC estimates there were 370K hospitalizations this year. Image
Read 5 tweets
Helen Branswell 🇨🇦 Profile picture
Feb 9
1. A 🧵on #flu & #Covid activity trends based on reports today from @CDCgov. Most of the data is for the week ending Feb. 3. The #influenza-like illness (ILI) season seems to have peaked at the end of Dec, with declines in flu, Covid & #RSV since then. But the season isn't over. Image
2. There was a bit of an uptick in #flu activity in the central & south central US. It corresponds with an increase in flu B detections there. Pre-Covid, flu B often arrived in a late season wave. We may see that again this year.
Map on left is the week ending 1/27; right is 2/3.
Image
Image
3. An additional 8 pediatric #flu deaths were reported to @CDCgov in the wk ending 2/3. The season's death toll in kids now stands at 74, which is awful, obviously, but not as bad as most years pre-Covid. But if there's a lot of flu B activity, this number could climb. Image
Read 5 tweets
Helen Branswell 🇨🇦 Profile picture
Jan 5
1. Traditionally I've done #flu updates on Fridays, but given our new reality — #Covid is here to stay — & the expansion of data on @CDCgov's website, I'm going to broaden the scope going forward. Top line news: Lotta illness out there right now.
cdc.gov/respiratory-vi…
2. Most parts of the country are ensconced in #influenza-like illness season right now. (Minn, what are you doing to stay so healthy?) This graphic doesn't just represent #flu activity; #Covid, #RSV & other ILIs are also captured here. @CDCgov's FluView: cdc.gov/flu/weekly/
Image
3. #Flu is the most common bug making people sick right now, but there's a lot of #Covid going around too. (I know from recent experience.) #RSV is still fairly active but declining. This breakdown of what's causing most illness is seen both in positive tests & ER visits.
Image
Image
Read 7 tweets
Helen Branswell 🇨🇦 Profile picture
Oct 13, 2023
1. It's fall, pharmacies are pushing you to get a #flu shot. What's going on with #influenza, you wonder? Let's break down @CDCgov's most recent FluView report, posted today. It's for the week ending Oct. 7, the first week of the 2023-24 flu season. 🧵 cdc.gov/flu/weekly/
2. Know this: #influenza "seasons" run over a period from the beginning of Oct to the end of the following Sept. To say last week was the first week of the 2023-24 season signals only that we're in a new monitoring period. It doesn't mean #flu activity has actually picked up.
3. You can see we're at the start of a new monitoring period here. The line that will depict what happens during #influenza-like illness (ILI) season 2023-24 is barely visible. (I added the arrow.) Last #flu season (orange line) started very early. Slower start this year. Image
Read 9 tweets

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