Shingles, a painful viral infection due to the reactivation of the varicella-zoster virus (VZV), is primarily known for its blistering rash and nerve pain. New research indicates, however, that shingles vaccine can be significant in preventing dementia. This recent finding paves the way to new avenues to understand the association between viral illness and brain wellness, which might change preventive treatment against cognitive degeneration in aging individuals.

Once a person has had chickenpox, he or she carries the varicella-zoster virus for life. The virus lies dormant within nerve cells and may reappear years later as shingles, commonly because of compromised immunity with age, stress, or illness.

Shingles appears as a painful rash, typically on one side of the body, and may persist for weeks. Aside from the rash, the infection may cause severe complications like postherpetic neuralgia (PHN), a long-term nerve pain syndrome that lasts for months or even years. In rare instances, shingles may infect the eye, causing blindness.

The Centers for Disease Control and Prevention (CDC) estimates that approximately 1 in every 3 Americans will develop shingles at some time during their lifetime. Vaccines have been recommended to avoid the condition, but recent studies indicate they might also have an added bonus—prevention from dementia.

Shocking Link Between Shingles and Dementia

Dementia, such as Alzheimer's disease, is a rapidly increasing worldwide health issue, with millions of older adults at risk. Although the causes of dementia are still unknown, researchers have long suspected that some viruses, specifically those in the herpes family (which includes VZV), may play a role in cognitive decline.

A study recently published in Nature determined that getting the shingles shot lowered the risk of developing dementia dramatically. Scientists followed more than 280,000 elderly people in Wales who got the original shingles vaccine, Zostavax, and identified a 20% decrease in dementia incidence over the next seven years.

Lead author Dr. Pascal Geldsetzer of Stanford University said the results were "very robust" and added that women appeared to gain more benefit from the vaccine than men. Since women are at greater risk for dementia, these results could have important implications for future prevention efforts.

Can Shingles Cause Cognitive Decline?

Although no one knows the exact mechanisms, several theories discuss how the shingles virus might enhance the risk of dementia:

Inflammation and Brain Damage: The varicella-zoster virus has the ability to cause inflammation in the body, including the brain. Chronic inflammation is recognized to speed up cognitive decline and may play a role in neurodegenerative diseases such as Alzheimer's.

Vascular Effects: The virus has the ability to infect blood vessels in the brain, leading to clots or constricting blood flow. Decreased cerebral circulation is a well-documented risk factor for dementia and stroke.

Amyloid Protein Formation: A study by the University of Colorado Anschutz Medical Campus indicates that shingles can encourage the formation of amyloid plaques, a characteristic of Alzheimer's disease. These adhesive proteins clump together in the brain, interfering with normal function and speeding up cognitive decline.

Can Shingles Vaccination Protect Against Dementia?

The research suggests that shingles vaccination can lower the risk of dementia by inhibiting reactivation of the virus and triggering inflammation in the brain. It is unclear, however, whether the same protective mechanism works for the newer, more effective Shingrix vaccine, which supplanted Zostavax in 2020.

In contrast to Zostavax, which had a live but attenuated form of the virus, Shingrix is a genetically modified vaccine that consists of certain viral proteins to stimulate an immune response. Shingrix has been 97% effective in preventing shingles in clinical trials, versus 51% for Zostavax. Whether it can help prevent dementia, however, is an open question scientists are eager to investigate.

Who Should Receive the Shingles Vaccine?

The CDC advises Shingrix for people aged 50 and above, as well as younger adults with compromised immune systems. The vaccine is given in two doses, spaced a few months apart, and is very effective in preventing shingles and its complications.

With these advantages, however, vaccine acceptance continues to be low, with less than 40% of eligible Americans having gotten their shots. The most frequent side effects are mild flu-like symptoms and pain at the site of injection, but experts point out that the advantages far outweigh the risks.

Tips for Reducing Dementia Risk

Although shingles vaccination holds great potential for dementia prevention, it is not the only answer. Experts suggest an integrated approach to brain health that involves:

Living an Active Lifestyle: Physical exercise on a regular basis enhances circulation to the brain and averts cognitive loss.

Healthy Nutrition: A diet modelled on Mediterranean cuisine, featuring high intakes of fruits, vegetables, whole grains, and healthy fats, is supportive of brain function.

Social and Mental Stimulation: Mental activity with reading, puzzles, or social engagement may build cognitive reserve.

Control of Chronic Illnesses: Control of high blood pressure, diabetes, and cholesterol lowers the risk of dementia.

The association of shingles with dementia risk demonstrates the complex ways infectious illnesses affect overall well-being. Finding that shingles vaccination can decrease risk of dementia adds yet another persuasive argument to convince older people to be vaccinated. Although more study is necessary to validate the results, the study holds out hope that a straightforward vaccine has a key part to play in maintaining cognitive capacity and enhancing the quality of life among aging groups.

As scientists continue to investigate the link between viral infections and brain health, one thing is certain: guarding yourself against shingles might have advantages that reach far beyond the skin. With the increasing global burden of dementia, interventions such as vaccination could become a key part of the arsenal in the battle against cognitive decline.

John Roberts, a 68-year-old anchor for Fox News, is currently in the hospital battling a serious case of malaria. Roberts shared with PEOPLE magazine that he was diagnosed on Monday, August 25. He believes he contracted the illness during a vacation in Indonesia.

According to the Center of Disease Control and Prevention, US reports 2000 malaria cases a year with an average of 7 deaths per year since 2007-2022. What’s surprising is that 95% of these cases happen to be people who did not take malaria prevention medication.

What Symptoms Did John Roberts Experience?

Roberts described his symptoms as starting about 10 days after he returned from his trip. He felt pain all over his body, as he explained “from head to toe” and experienced uncontrollable shivering while on air. Initially, he thought it was just the flu, but knew it was serious when blood tests showed his white blood cells and platelets were very low.

Upon being officially diagnosed in the emergency room, Roberts admitted he was "a little scared," recognizing that malaria can be deadly if not treated. He said he has never felt this sick in his life.

What Is The First Symptom Of Malaria?

Stanford University explains that In the beginning, malaria can feel a lot like the flu. Symptoms might not seem unique, as they are similar to many other common illnesses. The most typical symptoms of malaria include:

• Fever
• Chills
• Headache
• Sweating
• Fatigue or feeling very tired
• Nausea and vomiting
• Body aches
• A general feeling of being sick

How severe these symptoms are can depend on your age, overall health, and the type of malaria parasite you have. In some cases, people who have been infected many times might have few or even no symptoms at all.

While most people recover, in rare cases, malaria can become very serious. It can lead to problems with the brain or spinal cord, seizures, or a loss of consciousness. The most severe types of malaria can even be deadly.

How Long Does It Take For Malaria Symptoms To Appear?

Symptoms usually show up anywhere from 7 to 30 days after you are infected. However, for some types of malaria, you might not feel sick for many months, and in rare cases, up to a year after being exposed. The time it takes for symptoms to appear can also be longer if you have taken medicine to prevent the infection. Additionally, if you have had malaria before, your symptoms might be less severe.

How Was John Roberts Treated?

Roberts has been treated with IV artesunate, a powerful medication used for severe cases of malaria. He describes his recovery as a series of "up and down" days, with his body temperature swinging from shivering cold to sweating.

Roberts is the only malaria patient in his hospital, and one of his doctors said it was the first case he had ever seen. A person’s malaria treatment depends on a few things like,

• Whether it's for prevention or to treat an active infection.
• Your health, age, and if you are pregnant.
• How sick you are.
• If the malaria parasite is resistant to certain medicines.
• The possible side effects of the medicine.
• People who need special care include pregnant women, children, the elderly, and those with other health problems.

How Is Severe Malaria Treated?

In very serious cases of malaria, a special procedure called an exchange blood transfusion may be used. This is the fastest way to get rid of the parasites. During this procedure, blood is taken from you while you receive new blood from a donor, along with malaria medicine.

If you are traveling to a remote area without easy access to medical care, your doctor might give you medicine to carry with you. You will get instructions on how to use it if you start showing malaria symptoms. This is a temporary solution, and you should still get to a doctor as soon as possible, ideally within 24 hours.

From January next year, parents in England and Wales will have one less health worry on their checklist. The NHS is rolling out the chickenpox vaccine for free to all young children. Administered in two doses at 12 and 18 months, the jab will be paired with the existing MMR vaccine that already shields kids from measles, mumps and rubella.

The move also comes with a catch-up programme for slightly older children, ensuring no one misses out. It is a win not just for health but also for households and the economy, with chickenpox costing the UK around £24 million annually in lost workdays and productivity.

What is Chickenpox?

The virus behind it is the varicella-zoster, which spreads faster than playground gossip. It triggers an itchy rash, dotted with small blisters and often accompanied by fever, fatigue and general misery.

The rash, however, shows up 10 to 21 days after exposure and lasts about a week. And you can spread the virus even before the rash is evident and until every blister has dried out. That means kids can be carriers long before anyone realises.

Also Read: 'RFK Is Weaponizing Public Health': White House Sacks US CDC Director Susan Monarez Amid Vaccine Cuts

Why the Vaccine is a Game-Changer

For most children, chickenpox is unpleasant but manageable. But in some cases, the virus does not play fair. Pregnant women, very young babies and adults are especially vulnerable. Complications can include pneumonia, encephalitis (brain swelling), bacterial infections, and in rare instances, even stroke. It sounds dramatic because it can be.

And let us not forget the dreaded shingles. Once you have had chickenpox, the virus hibernates in your nerve cells, waiting for years to reactivate. When it does, it emerges as shingles, a painful and sometimes long-lasting condition that haunts adults. By vaccinating children, the NHS is not just preventing itchy rashes; it is reducing future risks of shingles too.

Symptoms Worth Spotting

Chickenpox has a very distinct three stages:

• Red bumps called papules make their debut.
• Those bumps turn into fluid-filled blisters, which eventually burst.
• Scabs form and healing begins.

To complicate matters, new spots appear over several days, so your child may look like they are juggling different skin stages at once.

Who is at Risk?

Anyone who has not had chickenpox or the vaccine is fair game. The risk is higher for people working in schools, nurseries or any place where germs travel in packs. The virus can spread through direct contact with the rash or even via droplets from a cough or sneeze.

But if you have been vaccinated and still catch chickenpox, the symptoms are typically much milder: fewer blisters, less fever and a quicker recovery.

Complications That Keep Doctors on Their Toes

While chickenpox is usually mild, the potential complications are no joke. These include:

• Infected skin or bloodstream
• Dehydration
• Pneumonia
• Encephalitis
• Toxic shock syndrome
• Reye’s syndrome (when children take aspirin during infection)

Such risks say why the vaccine is not just a convenience but a lifesaver.

Tackling Falling Vaccination Rates

The chickenpox announcement also comes at a crucial time. Uptake of existing childhood vaccines in England is slipping. In 2024/25, none hit the 95 per cent target, with MMR uptake hovering at 91.9 per cent among five-year-olds—the lowest since 2010/11. Adding chickenpox protection to the routine schedule could help remind parents of the importance of immunisation.

Why Parents Should Welcome This Move

Chickenpox may sound like a rite of passage, but in reality, it is an unpredictable infection that can disrupt households, put vulnerable people at risk and occasionally turn dangerous. With the vaccine, parents can skip the sleepless nights of itch relief lotions, the endless laundry of pus-stained sheets and the nervous waiting for complications to pass.

Starting on September 1, 2025, the NHS in the UK is expanding who can get the shingles vaccine. The program now includes all adults aged 18 and older who have a very weak immune system. This change aims to protect about 300,000 more people from the painful and serious problems shingles can cause.

This decision came from a group of experts called the Joint Committee on Vaccination and Immunisation (JCVI). They found that younger adults with weak immune systems face a similar risk of getting so sick from shingles that they need to go to the hospital, just like older adults who were already getting the vaccine.

Dr. Amanda Doyle from NHS England says the vaccine is safe and works well. She explains that it greatly lowers the chance of getting shingles and becoming seriously ill. She encourages anyone who is now eligible to get vaccinated as soon as possible, even if they have had shingles before, since you can get it more than once.

Who Is Now Eligible for Shingles Vaccine?

Shingles is caused by the same virus as chickenpox, and it can cause a very painful rash. For most people, it's not a serious illness, but it can lead to problems like long-lasting nerve pain, eye issues, or even more serious infections like pneumonia.

The new group of people who can get the vaccine includes those with conditions like leukemia or lymphoma, or those going through chemotherapy. These individuals are at a much higher risk of getting very sick if they get shingles. The NHS will start contacting eligible patients soon, but you can also book an appointment through your doctor's office.

How Long Does Shingles Vaccine Work?

According to the Harvard Health, the Center of Disease Control and Prevention recommends that adults aged 50 and older get two doses of the Shingrix vaccine to prevent shingles. A 2024 study by Annals of Internal Medicine, looked at how well this vaccine works over time, and the results are very promising.

The study, which included almost two million people, found that the two-dose vaccine was still 73% effective at preventing shingles four years later. This shows that the vaccine provides long-lasting protection.

However, the study also highlighted the importance of getting both doses. People who only received one dose saw their protection drop quickly after the first year, with the vaccine being only 52% effective after three years. This makes it clear why getting the second shot is so important.

What If You're Late for the Second Shot?

If you miss the recommended two-to-six-month window for your second dose, don't worry—it's not too late. The study found that delaying the second dose beyond six months did not make the vaccine less effective. You should get your second dose as soon as you can to ensure you have full, long-lasting protection.

The study also found that the vaccine worked slightly better for people who got their shots before age 65 compared to those who were vaccinated later in life.

When Do You Need Shingles Shot?

Different countries have different guidelines, while CDC recommends people above 50 get vaccinated as well as adults aged 19 and older who have a weakened immune system should also get two doses to protect themselves.

In the UK, the shingles vaccine, called Shingrix, was previously given to people aged 65 to 79 and those with a very weak immune system who were 50 or older. However, following advice from a group of experts, this is changing.

Starting next week, all adults aged 18 and over with a very weak immune system will be able to get the vaccine. This is because the experts found that these younger adults face the same high risk of severe illness or long-lasting nerve pain from shingles as the groups who were already eligible.