Medicine: Creeping Fever

Undulant fever is a mysterious disease that makes uncounted millions miserable. In 1914 a French physician, Dr. Charles Nicolle, predicted that it might some day become the No. 1 human disease (it was then widely prevalent among cattle). Last week in Mexico City, delegates to a Pan American Congress on the disease agreed that, unhappily, Dr. Nicolle's prediction seemed likely to come true. Undulant fever, barely 40 years ago an ailment chiefly of the Mediterranean world,* is already a major problem in most of North and South America.

Undulant fever (brucellosis) is caused...

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