Helen Branswell 🇨🇦 Profile picture
Apr 26, 2022 7 tweets 5 min read Read on X
1. @UKHSA published a technical brief today on the unusual #hepatitis cases in young children. It contains a bunch of interesting information. You can find it here: assets.publishing.service.gov.uk/government/upl…
2. So far the UK has found 114 of these unusual #hepatitis cases in kids. (111 in the screenshot is out of date.) Most of the kids are under 5. 10 required liver transplants. The UK is reporting the largest number of these cases so far.
3. The unusual #hepatitis cases date back to the beginning of this year in the UK (to October in Alabama) but the preponderance of them have been seen in March & April. The UK is also seeing a lot of adenovirus activity. Adenovirus is the main suspect here.
4. But there are a lot of hypotheses on the table about what might be causing these unusual #Hepatitis cases.
5. How is #UKHSA going about trying to figure out what is responsible for the unusual #hepatitis cases? It is conducting a lot of studies.
6. @UKHSA is already in a position where it can say some things aren't very likely. There's no travel link. It doesn't appear to be diet or water source related, or linked to exposure to animals.
7. At this point, the main suspect is an adenovirus, type 41. Subtyping done on viruses from 11 of the kids showed adenovirus 41 was present. (Alabama found it in 9 of 9 cases.) But other adenoviruses were found too.
Watch this space.

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More from @HelenBranswell

Jun 22
1. Some thoughts on #H5N1 #birdflu in cows. A 🧵
A bunch of new herds were announced by a couple of states today — Colorado and Iowa. The former reported +5 & looks like it may have another pending; It now has 18 in total, maybe 19. Iowa reported 2 more, taking it to 10.
2. To the best of my ability to keep up — and that's being challenged — I think there have been 125 herds reported in 12 states since the end of March. This graph combines @USDA's numbers from yesterday with the newly reported herds from Colorado & Iowa. Image
3. But @USDA threw a wrench into the works today. It updated its exceedingly wonky #H5N1 #birdflu in cows landing site. Some things work better, but the cumulative number of herds was lowered by 4 (from yday) with no explanation. USDA now says 112 herds in 12 states. Image
Read 8 tweets
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
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
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
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
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

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