As the immune system weakens with age, the risk of shingles
increases. Shingles starts to become more common in our 50s; half
of everyone who makes it to age 85 will have experienced shingles
some time along the way. But anyone harboring the varicella virus
in their nervous system, which is true of most everyone over age
40, and who has an impaired immune system is vulnerable. Federal
vaccine officials have recommended that everyone age 60 or older
with a healthy immune system be vaccinated against shingles.
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