Blood-Brotherhood

Abstract

THERE are good reasons why this ancient custom can never be a preventive of disease, though sometimes it may be a cause of it. The serum treatment has been found useful, and presumably will be found useful only in such diseases or diseased conditions as are due to poisons (toxins) secreted by various species of pathogenic micro-organisms (e.g. those of rabies, anthrax, diphtheria), or by some animals (e.g. scorpion, snake), as weapons of offence or defence.