All of your hepatitis B vaccine questions answered
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.
Hepatitis B is a viral infection that can cause liver disease in people of any age or background. Vaccination is 95 percent effective against the virus. But in recent years, false claims, rumors, and myths about the hepatitis B vaccine have become increasingly common.
Here’s everything you need to know about the lifesaving hepatitis B vaccine.
What is hepatitis B?
Hepatitis B is a liver infection caused by the hepatitis B virus. The virus attacks the liver, causing severe short-term and long-term infections.
Short-term hepatitis B infections may cause “fever, fatigue, loss of appetite, nausea, vomiting, jaundice (yellow skin or eyes, dark urine, clay-colored bowel movements), and pain in the muscles, joints, and stomach,” according to the Centers for Disease Control and Prevention.
A long-term hepatitis B infection occurs when the virus stays in the body beyond the initial infection, causing chronic illness. Hepatitis B infections become chronic in 90 percent of infected infants, half of infected young children, and between 5 to 10 percent of infected adults.
“Most people who go on to develop chronic hepatitis B do not have symptoms, but it is still very serious and can lead to liver damage (cirrhosis), liver cancer, and death. Chronically infected people can spread hepatitis B virus to others, even if they do not feel or look sick themselves,” says the CDC.
How does the hepatitis B virus spread?
The hepatitis B virus is spread through body fluids, including blood, semen, and saliva. It can also be transmitted from birthing parent to child during pregnancy and childbirth.
“While hepatitis B is an infection that lives in bodily fluids, it can survive outside the human body for several days, which means that sharing contaminated household products is a possible source of infection,” said Dr. Christopher Labos, a McGill University cardiologist and epidemiologist, in a 2019 article.
In 2022, over 250 million people worldwide had chronic hepatitis B, and 1.1 million died from the disease. Most of the deaths were from liver damage and liver cancer. Less than 15 percent of people living with hepatitis B have been diagnosed.
How well does the vaccine protect against hepatitis B?
Hepatitis B vaccination is up to 95 percent effective, providing lasting—and possibly lifelong—protection against the virus. Depending on when the first dose is given, the complete vaccine series consists of two to three doses.
The vaccine is most effective for infants and children. The CDC recommends that infants receive it at birth for the most protection.
The first dose is followed by two to three additional doses administered before 18 months. Children, adolescents, and adults who weren’t vaccinated as infants should also receive the vaccine.
Vaccination is particularly important for high-risk groups, including health workers and those who are in close contact with individuals living with chronic hepatitis B, people who use intravenous drugs, and people receiving blood transfusions, dialysis, or organ transplants.
Is the vaccine safe?
Vaccines against hepatitis B were first developed in the 1980s, and they have been proven safe for decades. They have a low risk of serious side effects and are safe enough to be given to newborns, pregnant people, and immunocompromised people.
We also know hepatitis B vaccines work: “Between 1990 (about the time when universal hepatitis B vaccinations started) and 2006, the rate of hepatitis B infection fell by 81 percent to the lowest level ever recorded, and the decline was greatest among children,” added Labos.
Hepatitis B rates have continued to decline across all age groups, with the U.S. exceeding its goal of reducing new hepatitis B infections by 20 percent.
Why do doctors recommend the vaccine for babies?
Hepatitis B vaccination helps protect infants from a lifetime of potentially life-threatening infections and complications. Nine out of 10 unvaccinated infants infected with hepatitis B will develop chronic infections, which increases their risk of liver failure and liver cancer.
The hepatitis B vaccine is administered at birth to help prevent the virus from being transmitted from birthing parent to child. It also helps protect infants who might be in close contact with someone with hepatitis B. This is particularly important because most people who have hepatitis are undiagnosed.
Have more questions? Talk to your health care provider to learn more about hepatitis B vaccination.
This article first appeared on Public Good News and is republished here under a Creative Commons license.
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Recommended
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
-
Fix Chronic Fatigue & Regain Your Energy, By Science
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.
Chronic fatigue is on the rise. A lot of it appears to be Long COVID-related, but whether that’s the case for you or not, one thing that will make a big difference to your energy levels is something that French biochemist Jessie Inchauspé is here to explain:
Mitochondrial management
Inchauspé explains it in terms of a steam train; to keep running, it must have coal burning in its furnace. However, if more coal is delivered to the engine room faster than it can be put in the furnace and burned, and the coal just keeps on coming, the worker there will soon be overwhelmed trying to find places to put it all; the engine room will be full of coal, and the furnace will sputter and go out because the worker can’t even reach it on account of being buried in coal.
So it is with our glucose metabolism also. If we get spikes of glucose faster than our body can deal with them, it will overload the body’s ability to process that energy at all. Just like the steam train worker, our body will try! It’ll stuff that extra glucose wherever it can (storing as glycogen in the liver is a readily available option that’s easy to do and/but also gives you non-alcoholic fatty liver disease and isn’t quickly broken down into useable energy), and meanwhile, your actual mitochondria aren’t getting what they need (which is: a reliable, but gentle, influx of glucose).
You can imagine that the situation we described in the steam train isn’t good for the engine’s longevity, and the corresponding situation in the human body isn’t good for our mitochondria either (or our pancreas, or our liver, or… the list goes on). Indeed, damaged mitochondria affect exercise capacity and stress resilience—as well as being a long-term driver of cancer.
The remedy, of course, is blood sugar management. Specifically, avoiding glucose spikes. She has a list of 10 ways to do this (small changes to how we eat; what things to eat with what, in which order, etc) that make a huge measurable difference. For your convenience, we’ve linked those ten ways below; first though, if you’d like to hear it from Inchauspé directly (her style is very pleasant), enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
- 10 Ways To Balance Your Blood Sugars ← this is the longer list she’s referring to in the video!
- How To Unfatty A Fatty Liver ← also relevant
Take care!
Share This Post
-
Tuna Steak with Protein Salad
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.
Yes, it’s protein on protein today, and it’s all healthy.
You will need (per person)
- 1 tuna steak
- 1 400g/12oz can mixed beans, drained & rinsed
- 1 tsp capers
- 2 tsp black pepper, coarse ground
- 1 red chili, chopped
- 1 lime, cut into wedges
- ½ tsp white wine vinegar
- Extra virgin olive oil, for cooking
- Garnish: chopped parsley
Method
(we suggest you read everything at least once before doing anything)
1) Put the beans in a bowl, mixing in the capers, vinegar, and 1 tsp of the black pepper
2) Gently rub a little olive oil onto each side of the tuna steak, and season with the remainder of the black pepper (as in, the other tsp, not the rest of what you have in the house).
3) Heat a ridged grill pan until hot, and then cook the tuna for around 3 minutes on each side. Do not jiggle it! Do not slide it, and definitely do not stir it. Just gently turn it over when necessary. The edges should be cooked, and the inside should still be pink (it’s easy to forget when it comes from a can, but remember tuna is usually eaten raw)
4) Serve, sprinkling with the chopped chili and garnishing with the parsley. The lime wedges go on the side for squeezing at the table.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- Protein: How Much Do We Need, Really?
- Salmon vs Tuna – Which is Healthier?
- Cilantro vs Parsley – Which is Healthier?
- Our Top 5 Spices: How Much Is Enough For Benefits?
Take care!
Share This Post
-
Is Your Gut Leading You Into Osteoporosis?
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.
Bacterioides Vulgatus & Bone Health
We’ve talked before about the importance of gut health:
And we’ve shared quite some information and resources on osteoporosis:
- The Bare-bones Truth: Osteoporosis Mythbusting
- Osteoporosis Exercises (What To Do, And What To Avoid)
- Vit D + Calcium: Too Much Of A Good Thing?
- Collagen For Bones: We Are Such Stuff As Fish Are Made Of
- Which Osteoporosis Medication, If Any, Is Right For You?
How the two are connected
A recent study looked at Bacterioides vulgatus, a very common gut bacterium, and found that it suppresses the gut’s production of valeric acid, a short-chain fatty acid that enhances bone density:
❝For the study, researchers analyzed the gut bacteria of more than 500 peri- and post-menopausal women in China and further confirmed the link between B. vulgatus and a loss of bone density in a smaller cohort of non-Hispanic White women in the United States.❞
Pop-sci source: Does gut bacteria cause osteoporosis?
The study didn’t stop there, though. They proceeded to test, with a rodent model, the effect of giving them either:
- more B. vulgatus, or
- valeric acid supplements
The results of this were as expected:
- Those who were given more B. vulgatus got worse bone microstructure
- Those who were given valeric acid supplements got stronger bones overall
Study source: Gut microbiota impacts bone via Bacteroides vulgatus-valeric acid-related pathways
Where can I get valeric acid?
We couldn’t find a handy supplement for this, but it is in many foods, including avocados, blueberries, cocoa beans, and an assortment of birds.
Click here to see a more extensive food list (you’ll need to scroll down a little)
Bonus: if you happen to be on HRT in the form of Estradiol valerate (e.g: Progynova), then that “valerate” is an ester of valeric acid, that your body can metabolize and use as such.
Enjoy!
Share This Post
Related Posts
-
12 Questions For Better Brain Health
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.
We usually preface our “Expert Insights” pieces with a nice banner that has a stylish tall cutout that allows us to put a photo of the expert in. Today we’re not doing that, because for today’s camera-shy expert, we could only find one photo, and it’s a small, grainy, square headshot that looks like it was taken some decades ago, and would not fit our template at all. You can see it here, though!
In any case, Dr. Linda Selwa is a neurologist and neurophysiologist with nearly 40 years of professional experience.
The right questions to ask
As a neurologist, she found that one of the problems that results in delayed interventions (and thus, lower efficacy of those interventions) is that people don’t know there’s anything to worry about until a degenerative brain condition has degenerated past a certain point. With that in mind, she bids us ask ourselves the following questions, and discuss them with our primary healthcare providers as appropriate:
- Sleep: Are you able to get sufficient sleep to feel rested?
- Affect, mood and mental health: Do you have concerns about your mood, anxiety, or stress?
- Food, diet and supplements: Do you have concerns about getting enough or healthy enough food, or have any questions about supplements or vitamins?
- Exercise: Do you find ways to fit physical exercise into your life?
- Supportive social interactions: Do you have regular contact with close friends or family, and do you have enough support from people?
- Trauma avoidance: Do you wear seatbelts and helmets, and use car seats for children?
- Blood pressure: Have you had problems with high blood pressure at home or at doctor visits, or do you have any concerns about blood pressure treatment or getting a blood pressure cuff at home?
- Risks, genetic and metabolic factors: Do you have trouble controlling blood sugar or cholesterol? Is there a neurological disease that runs in your family?
- Affordability and adherence: Do you have any trouble with the cost of your medicines?
- Infection: Are you up to date on vaccines, and do you have enough information about those vaccines?
- Negative exposures: Do you smoke, drink more than one to two drinks per day, or use non-prescription drugs? Do you drink well water, or live in an area with known air or water pollution?
- Social and structural determinants of health: Do you have concerns about keeping housing, having transportation, having access to care and medical insurance, or being physically or emotionally safe from harm?
You will note that some of these are well-known (to 10almonds readers, at least!) risk factors for cognitive decline, but others are more about systemic and/or environmental considerations, things that don’t directly pertain to brain health, but can have a big impact on it anyway.
About “concerns”: in the case of those questions that ask “do you have concerns about…?”, and you’re not sure, then yes, you do indeed have concerns.
About “trouble”: as for these kinds of health-related questionnaires in general, if a question asks you “do you have trouble with…?” and your answer is something like “no, because I have a special way of dealing with that problem” then the answer for the purposes of the questionnaire is yes, you do indeed have trouble.
Note that you can “have trouble with” something that you simultaneously “have under control”—just as a person can have no trouble at all with something that they leave very much out of control.
Further explanation on each of the questions
If you’re wondering what is meant by any of these, or what counts, or why the question is even being asked, then we recommend you check out Dr. Selwa et al’s recently-published paper, then all is explained in there, in surprisingly easy-to-read fashion:
Emerging Issues In Neurology: The Neurologist’s Role in Promoting Brain Health
If you scroll past the abstract, introduction, and disclaimers, then you’ll be straight into the tables of information about the above 12 factors.
Want to be even more proactive?
Check out:
How To Reduce Your Alzheimer’s Risk
Take care!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
-
Fitness Freedom for Seniors – by Jackie Jacobs
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.
Exercise books often assume that either we are training for the Olympics, and most likely also that we are 20 years old. This one doesn’t.
Instead, we see a well-researched, well-organized, clearly-illustrated fitness plan with age in mind. Author Jackie Jacobs offers tips and advice for all levels, and a progressive week-by-week plan of 15-minute sessions. This way, we’re neither overdoing it nor slacking off; it’s a perfect balance.
The exercises are aimed at “all areas”, that is to say, improving cardiovascular fitness, balance, flexibility, and strength. It also gives some supplementary advice with regard to diet and suchlike, but the workouts are the real meat of the book.
Bottom line: if you’d like a robust, science-based exercise regime that’s tailored to seniors, this is the book for you.
Click here to check out Fitness Freedom for Seniors, and get yours!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
-
Vaginal Probiotics: What Does The Science Say?
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.
It’s Q&A Day at 10almonds!
Have a question or a request? We love to hear from you!
In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!
As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!
So, no question/request too big or small 😎
❝Is there any merit to vaginal probiotics?❞
What a fun question! First let’s break it down, as this could mean two different things:
- Probiotics, which you consume, using your mouth, which are marketed as benefiting vaginal health
- Probiotics taken as a vaginal pessary/suppository, to act directly there
The former has limited evidence for it, but generally speaking, improving one’s gut health improves all other areas of health, so it’s not surprising if it helps this too.
See for example:
Some notes:
- candidal vaginitis means a yeast infection causing vaginal inflammation
- bacterial vaginosis means a vaginal bacterial imbalance (generally also featuring vaginal inflammation, though it can be asymptomatic)
In the latter case, the “imbalance” in question is usually a shortage of Lactobacillus sp. (that is to say, the diverse species of the Lactobacillus genus) resulting in an overgrowth of other kinds of bacteria, which in turn results in changing the vaginal microbiome to make it warmer and more acidic than it should be.
While a healthy vagina shouldn’t smell of roses, it shouldn’t smell fishy either; if it does, that’s a sign of bacterial vaginosis.
What it’s supposed to be like: slightly bitter, slightly salty, distinctly umami, along with a cocktail of personal pheromones (and if menstruating or otherwise* vaginally bleeding, then of course add: iron/”metallic”). The pheromones will also reflect any hormonal changes, but should never make anything smell bad, just different.
*e.g. due to PCOS, fibroids, etc. Note that in the case of PCOS, it may also smell a little different (if it does, then usually: a little more musky), due to often different hormone levels. Again: it still shouldn’t smell bad, though, just different.
In the above-linked study, taking more live Lactobacillus acidophilus (in yogurt, eating it, with their mouths) improved levels of L. acidophilus in the vagina. While the study authors concluded “this ingestion of yogurt may have reduced episodes of bacterial vaginosis”, which is rather a weak claim, it can be argued that it merely improving the levels of L. acidophilus in the vagina was already a win.
That was a small (n=42, and only 7 followed through to completion) and old (1996) study, and it bears mentioning that most of the studies into this seem to be small and old, but conclude similarly with weakly positive statements.
However, it does make a difference what kind of Lactobacillus is used, for example in this next study…
- L. fermentum RC-14 worked well (90% success rate)
- L. rhamnosus GR-1 worked somewhat (40% success rate)
- L. rhamnosus GG did not work (0% success rate)
So, diversity is key, and getting a wide range of Lactobacillus sp. seems to be a safe bet.
Short version: enjoying probiotics as part of your diet probably improves vaginal health, just like it improves pretty much everything else.
See also: Make Friends With Your Gut (You Can Thank Us Later)
You would think that this would mean that taking probiotics as a vaginal pessary/suppository would be even better, but the results are weaker, as in this study, which produced temporary improvements in about half the study group, with only 3 out of 28 being free of bacterial vaginosis the next month:
Treatment of bacterial vaginosis with lactobacilli
This study got better results, with a 61% success rate:
Important note
Do note that this last category, involving topical treatments (i.e., manually introducing Lactobacillus sp. to the vagina) were all in cases of pre-existing bacterial vaginosis, not as a prophylactic and/or general health-improving thing.
If your vagina seems happy right now, then do not mess with its happy bacterial balance!
And at all times (regardless of whether it seems happy right now or not): do not douche (it does not need it and will not benefit from it; the vagina is self-cleaning*) as this will wash out many of your Lactobacilli and will do absolutely nothing against any Candida there (C. albicans being a rooted fungus, whereas Lactobacillus is a sausage-shaped bacterium with many tiny appendages but no actual ability to stay put), so Candida will flourish in the Lactobacillus’s absence.
*by the vagina, we are referring to the vaginal canal. The vulva—the outside part consisting of the two pairs of labia, the glans clitoris, and clitoral hood—are not self-cleaning, and should just be washed gently per your normal bath/shower routine; that’s perfectly fine and good.
And definitely don’t put any “cleansing” toiletries inside the vagina (or any toiletries at all, for that matter), even if they are sold and marketed for that purpose; they will not help and they will harm.
Also, due to their neighborliness, messing up the microbiome inside the vagina is a common way to also get Candida inside the urethra:
How To Avoid Urinary Tract Infections (UTIs)
One other option
Finally, unless you have a “very good friend” you have a pressing urge to swap germs with, you might want to leave this one to the scientists, but we share this paper just for interest:
Lastly…
Going back to oral supplementation, if you’d like to try that then check out this for further notes on what, why, how, etc:
How Much Difference Do Probiotic Supplements Make To Health?
Take care!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
