During the summer of 1911, we had the opportunity of observing the course of an unusual case of vegetative endocarditis, of recovering a hitherto undescribed spiral organism from the blood in pure culture on two separate occasions, and of confirming the clinical diagnosis and recovering the same organism from the blood, cardiac vegetations and liver at autopsy.
The causal relationship of this organism to the disease in question seems definite and well established.
The patient, a man aged 37, was admitted to the Presbyterian Hospital, July 13, 1911, in the service of Dr. Bovaird, to whom we are greatly indebted for permission to use the clinical records.
—There was nothing in the family history bearing on the case. As a baby he had pleurisy and at the age of 4 suffered from an attack of diphtheria. In 1896 he was ill for three weeks with a fever