Shingles Vaccine

Shingles Vaccine : Recent studies highlight added benefits of the shingles vaccine beyond infection prevention.

o Research from South Korea links it to a 23% lower risk of cardiovascular disease, while a Welsh study suggests it may also reduce the risk of dementia.

• About Shingles: Shingles is caused by the varicella-zoster virus (VZV), the same virus that causes chickenpox.

o Symptoms: Appears as a painful, itchy rash on one side of the body, often in a band or stripe. Can lead to complications like postherpetic neuralgia (persistent nerve pain).

o Risk: After a chickenpox infection, the virus remains dormant and may reactivate later in life as shingles.

o Vaccines: Zostavax – a live-attenuated vaccine, used in the Welsh study exploring links between shingles vaccination and reduced dementia risk.

ü Shingrix – a recombinant vaccine, more widely used. A 2024 Oxford study found that vaccinated individuals in the U.S. had a 17% lower risk of dementia over six years.

• About Dementia : A general term for a decline in memory, thinking, and daily functioning.

o Symptoms: Memory loss, behavior changes, and reduced ability to perform everyday tasks.

o Common Types:

ü Alzheimer’s Disease: Most common, with progressive memory and cognitive decline.

ü Vascular Dementia: Caused by blood flow issues in the brain.

ü Mixed Dementia: Combination of multiple dementia types.

o Other Causes: Conditions like thyroid disorders or vitamin deficiencies can mimic dementia symptoms but are treatable.