With the H5N1 bird flu virus spreading quickly across animals in the US, experts are on high alert for signs of human-to-human transmission. Such a jump could become far easier with just a single mutation, according to new research.
A single mutation could allow the bird flu virus to infect the cells lining our noses and throats, making it more likely to go airborne. www.newscientist.com/article/2459 ...
-- New Scientist (@newscientist.bsky.social) December 11, 2024 at 4:58 AM
[image or embed]
@#2 ... "New Pandemic"?
And look see who we've got to protect us after 01/20/25. ...
Yeah, that was (is) my concern also.
And a reason why I was initially reluctant to post this thread.
So far, the possible outcome in the article is just that, as the article states -- a possible outcome.
At this point, I am quite happy it is being monitored by government medical professionals.
fwiw, here's the original (and, if i may add, apparently not yet peer-reviewed) research article...
A single mutation in bovine influenza H5N1 hemagglutinin switches specificity to human receptors
www.science.org
...
Editor's summary
In 2021, a highly pathogenic influenza H5N1 clade 2.3.4.4b virus was detected in North America that is capable of infecting a diversity of avian species, marine mammals, and humans. In 2024, clade 2.3.4.4b virus spread widely in dairy cattle in the US, causing a few mild human cases, but retaining specificity for avian receptors.
Historically, this virus has caused up to 30% fatality in humans, so Lin et al. performed a genetic and structural analysis of the mutations necessary to fully switch host receptor recognition.
A single glutamine to leucine mutation at residue 226 of the virus hemagglutinin was sufficient to enact the change from avian to human specificity.
In nature, the occurrence of this single mutation could be an indicator of human pandemic risk. "Caroline Ash
...
Experts Warn of Bird Flu Pandemic as Signals of Mutation Mount
www.sciencealert.com
... Health experts have been sounding the alarm about the potential pandemic threat posed by bird flu, which has been showing signs of mutating as it spreads among cows and infects people in the United States.
There is no guarantee that bird flu will ever begin transmitting between humans, and US health authorities have emphasised that the risk to the general public remains low.
The deadly bird flu variant H5N1 first emerged in China in 1996, but over the last four years it has spread more widely than ever before, reaching previously untouched regions such as penguin-haven Antarctica.
More than 300 million poultry birds have been killed or culled since October 2021, while 315 different species of wild birds have died across 79 countries, the World Organisation for Animal Health told AFP.
h5n1 virus particles
Mammals that ate the infected birds, such as seals, have also experienced mass-die offs.
The situation changed again in March, when the virus began spreading among dairy cows across the United States in another first.
Fifty-eight people have tested positive for bird flu in the US this year, including two who had no known exposure to infected animals, according to the Centers for Disease Control and Prevention.
There are also fears that some human cases are going undetected. Researchers said last month that eight out of 115 dairy workers tested in Michigan and Colorado had antibodies for bird flu, suggesting an infection rate of seven percent. ...
Stranglers - Skin Deep (1984)
www.youtube.com
Lyrics excerpt...
...
Many people tell you that they're your friend
You believe them, you need them for what's round the river bend
Make sure that you're receiving the signals they send
'Cos brother, you've only got two hands to lend
Maybe there's someone who makes you weep
And some nights loom up ahead when you're asleep
Some days there's things on your mind you should keep
Sometimes, it's tougher to look than to leap
Better watch out for the skin deep
Better watch out for the skin deep
(Better watch out) Watch out for the skin deep
(Better watch out) Watch out for the skin deep
Better watch out for the skin deep
One day the track that you're climbing gets steep
Your emotions are frayed, and your nerves are starting to creep
Just remember the days as long as the time that you keep
Brother, you better watch out for the skin deep
...
Drudge Retort Headlines
Trump Sworn In (171 comments)
Biden Pardons Fauci, Gen. Milley, Jan. 6 Committee Members (164 comments)
Bannon says MAGA Populism will Win - as Trump is Surrounded by Billionaires (33 comments)
TikTok Shuts Down in United States (27 comments)
Melania Trump Launches Her Own Cryptocurrency (14 comments)
First Hostages Freed as Long-Awaited Gaza Ceasefire (14 comments)
Chinese-Owned TikTok Back after Trump Pledge (12 comments)
Joe Biden Grants Clemency to Leonard Peltier (11 comments)
Vivek Ramaswamy Expected to Depart DOGE (9 comments)
AP Poll: Trump Lacks Mandate on Top Priorities (8 comments)