What you need to know about H5N1 bird flu
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On May 30, the Centers for Disease Control and Prevention reported that a Michigan dairy worker tested positive for H5N1 bird flu. It was the fourth person to test positive for H5N1 in the United States, following another recent case in Michigan, an April case in Texas, and an initial case in Colorado in 2022.
H5N1 bird flu has been spreading among bird species in the U.S. since 2021, killing millions of wild birds and poultry. In late March 2024, H5N1 bird flu was found in cows for the first time, causing an outbreak in dairy cows across several states.
U.S. public health officials and researchers are particularly concerned about this outbreak because the virus has infected cows and other mammals and has spread from a cow to a human for the first time.
This bird flu strain has shown to not only make wild mammals, including marine mammals and bears, very sick but to also cause high rates of death among species, says Jane Sykes, professor of small animal medicine at the University of California, Davis, School of Veterinary Medicine.
“And now that it has been found in cattle, [it] raises particular concern for spread to all the animal species, including people,” adds Sykes.
Even though the risk for human infection is low and there has never been human-to-human transmission of H5N1, there are several actions you can take to stay protected. Read on to learn more about H5N1 bird flu and the current outbreak.
What is H5N1?
H5N1 is a type of influenza virus that most commonly affects birds, causing them severe respiratory illness and death.
The H5N1 strain first emerged in China in the 1990s, and it has continued to spread around the world since then. In 1997, the virus spread from animals to humans in Hong Kong for the first time, infecting 18 people, six of whom died.
Since 2020, the H5N1 strain has caused “an unprecedented number of deaths in wild birds and poultry in many countries,” according to the World Health Organization.
Even though bird flu is rare in humans, an H5N1 infection can cause mild to severe illness and can be fatal in some cases. It can cause eye infection, upper respiratory symptoms, and pneumonia.
What do we know about the 2024 human cases of H5N1 in the U.S.?
The Michigan worker who tested positive for H5N1 in late May is a dairy worker who was exposed to infected livestock. They were the first to experience respiratory symptoms—including a cough without a fever—during the current outbreak. They were given an antiviral and the CDC says their symptoms are resolving.
The Michigan farm worker who tested positive earlier in May only experienced eye-related symptoms and has already recovered. And the dairy worker who tested positive for the virus in Texas in April only experienced eye redness as well, was treated with an antiviral medication for the flu, and is recovering.
Is H5N1 bird flu in the milk we consume?
The Food and Drug Administration has found traces of H5N1 bird flu virus in raw or unpasteurized milk. However, pasteurized milk is safe to drink.
Pasteurization, the process of heating milk to high temperatures to kill harmful bacteria (which the majority of commercially sold milk goes through), deactivates the virus. In 20 percent of pasteurized milk samples, the FDA found small, inactive (not live nor infectious) traces of the virus, but these fragments do not make pasteurized milk dangerous.
In a recent Infectious Diseases Society of America briefing, Dr. Maximo Brito, a professor at the University of Illinois College of Medicine, said that it’s important for people to avoid “drinking unpasteurized or raw milk [because] there are other diseases, not only influenza, that could be transmitted by drinking unpasteurized milk.”
What can I do to prevent bird flu?
While the risk of H5N1 infection in humans is low, people with exposure to infected animals (like farmworkers) are most at risk. But there are several actions you can take to stay protected.
One of the most important things, according to Sykes, is taking the usual precautions we’ve taken with COVID-19 and other respiratory viruses, including frequent handwashing, especially before eating.
“Handwashing and mask-wearing [are important], just as we learned from the pandemic,” Sykes adds. “And it’s not wearing a mask at all times, but thinking about high-risk situations, like when you’re indoors in a crowded environment, where transmission of respiratory viruses is much more likely to occur.”
There are other steps you can take to prevent H5N1, according to the CDC:
- Avoid direct contact with sick or dead animals, including wild birds and poultry.
- Don’t touch surfaces that may have been contaminated with animal poop, saliva, or mucus.
- Cook poultry and eggs to an internal temperature of 165 degrees Fahrenheit to kill any bacteria or virus, including H5N1. Generally, avoid eating undercooked food.
- Avoid consuming unpasteurized or raw milk or products like cheeses made with raw milk.
- Avoid eating uncooked or undercooked food.
- Poultry and livestock farmers and workers and bird flock owners should wear masks and other personal protective equipment “when in direct or close physical contact with sick birds, livestock, or other animals; carcasses; feces; litter; raw milk; or surfaces and water that might be contaminated with animal excretions from potentially or confirmed infected birds, livestock, or other animals.” (The CDC has more recommendations for this population here.)
Is there a vaccine for H5N1?
The CDC said there are two candidate H5N1 vaccines ready to be made and distributed in case the virus starts to spread from person to person, and the country is now moving forward with plans to produce millions of vaccine doses.
The FDA has approved several bird flu vaccines since 2007. The U.S. has flu vaccines in stockpile through the National Pre-Pandemic Influenza Vaccine Stockpile program, which allows for quick response as strains of the flu virus evolve.
Could this outbreak become a pandemic?
Scientists and researchers are concerned about the possibility of H5N1 spreading among people and causing a pandemic. “Right now, the risk is low, but as time goes on, the potential for mutation to cause widespread human infection increases,” says Sykes.
“I think this virus jumping into cows has shown the urgency to keep tracking [H5N1] a lot more closely now,” Peter Halfmann, research associate professor at the University of Wisconsin-Madison’s Influenza Research Institute tells PGN. “We have our eyes on surveillance now. … We’re keeping a much closer eye, so it’s not going to take us by surprise.”
This article first appeared on Public Good News and is republished here under a Creative Commons license.
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The Obesity Code – by Dr. Jason Fung
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Firstly, if you have already read Dr. Fung’s other book, The Diabetes Code, which we reviewed a little while ago, you can probably skip this one. It has mostly the same information, presented with a different focus.
While The Diabetes Code assumes you are diabetic, or prediabetic, or concerned about avoiding/reversing those conditions, The Obesity Code assumes you are obese, or heading in that direction, or otherwise are concerned about avoiding/reversing obesity.
What it’s not, though, is a weight loss book. Will it help if you want to lose weight? Yes, absolutely. But there is no talk here of weight loss goals, nor any motivational coaching, nor week-by-week plans, etc.
Instead, it’s more an informative textbook. With exactly the sort of philosophy we like here at 10almonds: putting information into people’s hands, so everyone can make the best decisions for themselves, rather than blindly following someone else’s program.
Dr. Fung explains why various dieting approaches don’t work, and how we can work around such things as our genetics, as well as most external factors except for poverty. He also talks us through how to change our body’s insulin response, and get our body working more like a lean machine and less like a larder for hard times.
Bottom line: this is a no-frills explanation of why your body does what it does when it comes to fat storage, and how to make it behave differently about that.
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Hazelnuts vs Pecans – Which is Healthier?
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Our Verdict
When comparing hazelnuts to pecans, we picked the hazelnuts.
Why?
In terms of macros, hazelnuts have more protein, carbs, and fiber, though the difference is not big in the latter two cases, and the glycemic indices are resultantly about the same. Meanwhile, pecans have a little more fat, but the fat is healthy in both cases. Everything taken into account, we’re calling it a tie on macros.
When it comes to vitamins, hazelnuts have more of vitamins B3, B5, B6, B7, B9, C, E, K, and choline, while pecans have more of vitamins A, B1, and B2. An easy win for hazelnuts here.
In the category of minerals, hazelnuts have more calcium, copper, iron, magnesium, manganese, phosphorus, and potassium, while pecans have more selenium and zinc. Another clear win for hazelnuts.
In short, enjoy either or both (unless you’re allergic, in which case, don’t), but hazelnuts are ultimately the more nutritionally dense of the two.
Want to learn more?
You might like to read:
Why You Should Diversify Your Nuts
Take care!
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The Meds That Impair Decision-Making
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
Impairment to cognitive function is often comorbid with Parkinson’s disease. That is to say: it’s not a symptom of Parkinson’s, but it often occurs in the same people. This may seem natural: after all, both are strongly associated with aging.
However, recent (last month, at time of writing) research has brought to light a very specific way in which medication for Parkinson’s may impair the ability to make sound decisions.
Obviously, this is a big deal, because it can affect healthcare decisions, financial decisions, and more—greatly impacting quality of life.
See also: Age-related differences in financial decision-making and social influence
(in which older people were found more likely to be influenced by the impulsive financial preferences of others than their younger counterparts, when other factors are controlled for)
As for how this pans out when it comes to Parkinson’s meds…
Pramipexole (PPX)
This drug can, due to an overlap in molecular shape, mimic dopamine in the brains of people who don’t have enough—such as those with Parkinson’s disease. This (as you might expect) helps alleviate Parkinson’s symptoms.
However, researchers found that mice treated with PPX and given a touch-screen based gambling game picked the high-risk, high reward option much more often. In the hopes of winning strawberry milkshake (the reward), they got themselves subjected to a lot of blindingly-bright flashing lights (the risk, to which untreated mice were much more averse, as this is very stressful for a mouse).
You may be wondering: did the mice have Parkinson’s?
The answer: kind of; they had been subjected to injections with 6-hydroxydopamine, which damages dopamine-producing neurons similarly to Parkinson’s.
This result was somewhat surprising, because one would expect that a mouse whose depleted dopamine was being mimicked by a stand-in (thus, doing much of the job of dopamine) would be less swayed by the allure of gambling (a high-dopamine activity), since gambling is typically most attractive to those who are desperate to find a crumb of dopamine somewhere.
They did find out why this happened, by the way, the PPX hyperactivated the external globus pallidus (also called GPe, and notwithstanding the name, this is located deep inside the brain). Chemically inhibiting this area of the brain reduced the risk-taking activity of the mice.
This has important implications for Parkinson’s patients, because:
- on an individual level, it means this is a side effect of PPX to be aware of
- on a research-and-development level, it means drugs need to be developed that specifically target the GPe, to avoid/mitigate this side effect.
You can read the study in full here:
Don’t want to get Parkinson’s in the first place?
While nothing is a magic bullet, there are things that can greatly increase or decrease Parkinson’s risk. Here’s a big one, as found recently (last week, at the time of writing):
Air Pollution and Parkinson’s Disease in a Population-Based Study
Also: knowing about its onset sooner rather than later is scary, but beneficial. So, with that in mind…
Recognize The Early Symptoms Of Parkinson’s Disease
Finally, because Parkinson’s disease is theorized to be caused by a dysfunction of alpha-synuclein clearance (much like the dysfunction of beta-amyloid clearance, in the case of Alzheimer’s disease), this means that having a healthy glymphatic system (glial cells doing the same clean-up job as the lymphatic system, but in the brain) is critical:
How To Clean Your Brain (Glymphatic Health Primer)
Take care!
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What Actually Causes High Cholesterol?
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In 1968, the American Heart Association advised limiting egg consumption to three per week due to cholesterol concerns linked to cardiovascular disease. Which was reasonable based on the evidence available back then, but it didn’t stand the test of time.
Eggs are indeed high in cholesterol, but that doesn’t mean that those who eat them will also be high in cholesterol, because…
It’s not quite what many people think
Some quite dietary pointers to start with:
- Egg yolks are high in cholesterol but have a minimal impact on blood cholesterol.
- Saturated and trans fats (as found in fatty meats or dairy, and some processed foods) have a greater influence on LDL levels than dietary cholesterol.
And on the other hand:
- Unsaturated fats (e.g. from fish, nuts, seeds) have anti-inflammatory benefits
- Fiber-rich foods help lower LDL by affecting fat absorption in the digestive tract
A quick primer on LDL and other kinds of cholesterol:
- VLDL (Very Low-Density Lipoprotein):
- delivers triglycerides and cholesterol to muscle and fat cells for energy
- is converted into LDL after delivery
- LDL (Low-Density Lipoprotein):
- is called “bad cholesterol”, which we call that due to its role in arterial plaque formation
- in excess leads to inflammation, overworked macrophage activity, and artery narrowing
- HDL (High-Density Lipoprotein):
- known as “good cholesterol,” picks up excess LDL and returns it to the liver for excretion
- is anti-inflammatory, in addition to regulating LDL levels
There are other factors too, for example:
- Smoking and drinking increase LDL buildup and cause oxidative damage to lipids in general and the blood vessels through which they travel
- Regular exercise, meanwhile, can lower LDL and raise HDL
- Statins and other medications can help lower LDL and manage cholesterol when lifestyle changes and genetics require additional support—but they often come with serious side effects, and the usefulness varies from person to person.
For more on all of this, enjoy:
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Want to learn more?
You might also like to read:
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Why does alcohol make my poo go weird?
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As we enter the festive season it’s a good time to think about what all those celebratory alcoholic drinks can do to your gut.
Alcohol can interfere with the time it takes for food to go through your gut (also known as the “transit time”). In particular, it can affect the muscles of the stomach and the small bowel (also known as the small intestine).
So, how and why does alcohol make your poos goes weird? Here’s what you need to know.
Diarrhoea and the ‘transit time’
Alcohol’s effect on stomach transit time depends on the alcohol concentration.
In general, alcoholic beverages such as whisky and vodka with high alcohol concentrations (above 15%) slow down the movement of food in the stomach.
Beverages with comparatively low alcohol concentrations (such as wine and beer) speed up the movement of food in the stomach.
These changes in gut transit explain why some people can get a sensation of fullness and abdominal discomfort when they drink vodka or whisky.
How long someone has been drinking a lot of alcohol can affect small bowel transit.
We know from experiments with rats that chronic use of alcohol accelerates the transit of food through the stomach and small bowel.
This shortened transit time through the small bowel also happens when humans drink a lot of alcohol, and is linked to diarrhoea.
Alcohol can also reduce the absorption of carbohydrates, proteins and fats in the duodenum (the first part of the small bowel).
Alcohol can lead to reduced absorption of xylose (a type of sugar). This means diarrhoea is more likely to occur in drinkers who also consume a lot of sugary foods such as sweets and sweetened juices.
Chronic alcohol use is also linked to:
- lactose intolerance
- overgrowth of small bowel bacteria and
- reduced absorption of fats from the pancreas not producing enough digestive enzymes.
This means chronic alcohol use may lead to diarrhoea and loose stools.
How might a night of heavy drinking affect your poos?
When rats are exposed to high doses of alcohol over a short period of time, it results in small bowel transit delay.
This suggests acute alcohol intake (such as an episode of binge drinking) is more likely to lead to constipation than diarrhoea.
This is backed up by recent research studying the effects of alcohol in 507 university students.
These students had their stools collected and analysed, and were asked to fill out a stool form questionnaire known as the Bristol Stool Chart.
The research found a heavy drinking episode was associated with harder, firm bowel motions.
In particular, those who consumed more alcohol had more Type 1 stools, which are separate hard lumps that look or feel a bit like nuts.
The researchers believed this acute alcohol intake results in small bowel transit delay; the food stayed for longer in the intestines, meaning more water was absorbed from the stool back into the body. This led to drier, harder stools.
Interestingly, the researchers also found there was more of a type of bacteria known as “Actinobacteria” in heavy drinkers than in non-drinkers.
This suggests bacteria may have a role to play in stool consistency.
But binge drinking doesn’t always lead to constipation. Binge drinking in patients with irritable bowel syndrom (IBS), for example, clearly leads to diarrhoea, nausea and abdominal pain.
What can I do about all this?
If you’re suffering from unwanted bowel motion changes after drinking, the most effective way to address this is to limit your alcohol intake.
Some alcoholic beverages may affect your bowel motions more than others. If you notice a pattern of troubling poos after drinking certain drinks, it may be sensible to cut back on those beverages.
If you tend to get diarrhoea after drinking, avoid mixing alcohol with caffeinated drinks. Caffeine is known to stimulate contractions of the colon and so could worsen diarrhoea.
If constipation after drinking is the problem, then staying hydrated is important. Drinking plenty of water before drinking alcohol (and having water in between drinks and after the party is over) can help reduce dehydration and constipation.
You should also eat before drinking alcohol, particularly protein and fibre-rich foods.
Food in the stomach can slow the absorption of alcohol and may help protect against the negative effects of alcohol on the gut lining.
Is it anything to worry about?
Changes in bowel motions after drinking are usually short term and, for the most part, resolve themselves pretty efficiently.
But if symptoms such as diarrhoea persist beyond a couple of days after stopping alcohol, it may signify other concerning issues such as an underlying gut disorder like inflammatory bowel disease.
Researchers have also linked alcohol consumption to the development of irritable bowel syndrome.
If problems persist or if there are alarming symptoms such as blood in your stool, seek medical advice from a general practitioner.
Vincent Ho, Associate Professor and clinical academic gastroenterologist, Western Sydney University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Invigorating Sabzi Khordan
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Have you ever looked at the nutritional values and phytochemical properties of herbs, and thought “well that’s all well and good, but we only use a tiny amount”? Sabzi khordan is a herb-centric traditional Levantine sharing platter served most commonly as an appetizer, and it is indeed appetizing! Never again will “start your meal with a green salad to ensure a gentle blood sugar curve” seem like a chore:
You will need
- Large bunch of parsley
- Small bunch of tarragon leaves
- Small bunch of basil leaves
- Small bunch of mint
- Small bunch of sorrel leaves
- 7 oz block of feta cheese (if vegan, a plant-based substitution is fine in culinary terms, but won’t have the same gut-healthy benefits, as plant-based cheeses are not fermented)
- 9 oz labneh-stuffed vine leaves in olive oil (if vegan, same deal as the above, except it’s harder to find plant-based substitutes for labneh (strained yogurt cheese), so you might want to use our Plant-Based Healthy Cream Cheese recipe instead and make your own)
- 2 tbsp za’atar (you can make your own by blending dried hyssop, dried sumac berries, sesame seeds, dried thyme, and salt—but if you haven’t had za’atar before, we recommend first buying some like the one that we linked, so that next time you know what you’re aiming for)
- 3 tbsp extra virgin olive oil
- 10 radishes
- 6 scallions
- 9 oz walnuts, soaked in water overnight and drained
- 1 cucumber, cut into batons
- Warm flatbreads (you can use our Healthy Homemade Flatbreads recipe)
Method
(we suggest you read everything at least once before doing anything)
1) Arrange the feta, labneh, za’atar, and olive oil in separate little serving dishes.
2) Arrange everything else around them on a platter.
3) Serve! You may be thinking: did we really need a recipe to tell us “put the things on a plate”? The answer here is that this one today was shared mostly as a matter of inspiration, because when was the last time you thought to serve herbs as the star of the dish? Plus, it’s an excuse to try za’atar, not something so commonly seen outside of the Levant.
An alternative presentation
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- Herbs for Evidence-Based Health & Healing
- Making Friends With Your Gut (You Can Thank Us Later)
- 10 Ways To Balance Blood Sugars
Take care!
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