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Justin Bieber's condition, Ramsay Hunt syndrome, is rare in Singapore, doctors say

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Five out of every 100,000 people develop Ramsay Hunt syndrome each year in the US.

PHOTOS: JUSTINBIEBER/INSTAGRAM

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It is a form of shingles that affects the facial nerve near the ear, and is caused by the varicella-zoster virus, the same virus behind chickenpox.
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