U.S. immigration officials held a Singapore cancer patient for four hours when they could not detect his fingerprints because of a drug he was taking, according to a Reuters news report.
The drug, capecitabine, is used to treat cancers in the head and neck, breast, stomach and colorectum. A side-effect is chronic inflammation of the palms or soles of the feet and the skin can peel, bleed and develop ulcers or blisters. This can lead to fingerprints being “eradicated.”
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