Alexis Carrel (1873-1944) is possibly the only Nobel Prize winner (medecine, 1912) who witnessed a miraculous cure 

 Its beneficiary was a young woman, Marie Bailly, on the verge of dying to tubercular peritonitis. Her sudden cure took place in Lourdes on May 28, 1902, under Carrel's scribes what he saw and what he thought as one who had by then come to the conclusion that there was no creed for belief in God and revelation. The gift of faith came to Carrel only after many years following his gripping experience in Lourdes.