Studies of immunity against hemorrhagic septicemia /

Abstract

Within r ecent vears a considerable interest has been developed in the part 0 played by Bacillu s bipolar-is septicus in the production of disease among farm live stock. Hemorrhagic septicemia wa s and is yet r epresented to be a prolifi c so nrce of loss among the domesticated mammals. So far as our own observations pertaining to Nebraska live stock are concerned, ther e does not seem to be cause to attach great importance to this disease as a menace to cattle, sheep , and sw ine. In our in vestigations we very rarely encountered this infection, in spite of considerable effort to do so and in spite of an abundance of suspected material from cattle, sheep, and swine. In only one direction can we r ecognize the organism as a serious source of loss, and that is in connection with fowl cholera, a disease whi ch exa cts a heavy ann ual toll from our poultry rai sers.