Acute infection of chicks and chronic infection of the ovaries of hens caused by the fowl-typhoid organism

does not appear. First page follows. Introduction The earliest authentic descriptions of fowl typhoid are those of Klein(1) in 1889, in England, and of Moore(2) in 1895-96, in the United States. Klein designated the disease as infectious enteritis and the causative organism, Bacillus gallinarum. Moore called the disease infectious leukemia of fowls and the causative organism Bacterium sanguinarium.§ It has since been determined that these investigators studied the same disease, which is now known as fowl typhoid and has become recognized as an important cause of mortality of adult fowls throughout the world.