Shingles is a painful skin rash which produces blisters which usually go away after 4 weeks. One in 5 of seniors that contract shingles suffer excruciating long-term nerve pain known as postherpetic neuralgia.



According to MSNBC.com, ?Shingles is caused by the varicella zoster virus, which also causes chickenpox. An estimated 15 percent to 30 percent of people infected with the virus develop shingles later in life. The virus essentially hibernates for decades in nerve cells around the spine. It reactivates in some patients, probably because the body's immune system weakens with age, doctors say.?

The recent FDA approval was based on a study that involved 19,000 out of 38,000 people which received the vaccine, the rest received a placebo. People who received the real vaccine got shingles at half the rate of those who received the placebo vaccine.

The vaccine which is produced by Merck, is a stronger version of a vaccine currently used to treat chickenpox. The vaccine is currently covered by some insurance health plans however coverage is expected to grow with the recent FDA approval. The vaccine costs around a $160 a shot.

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