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A Spotted Fever in Tobia, Colombia

Preliminary Report¹

The spotted fever of Tobia, concerning which we wish to present a preliminary report for the benefit of other workers, was discovered by the Colombian Yellow Fever Service, a cooperative organization of the National Department of Health of Colombia and The Rockefeller Foundation, in the course of its epidemiological field studies.

The present paper is considered of special interest to public health workers in Colombia because this serious disease has hitherto passed unnoticed in spite of its occurrence so close to Bogotá and because it is transmissible, has a case fatality greater than 90 per cent, and has assumed an epidemic character. The paper is also of general interest to scientific workers, because laboratory findings demonstrate that the disease is one of the typhus group of infections not previously reported for this part of South America.

¹ The studies on which this report is based were made under the auspices of the National Institute of Hygiene, Colombia (Samper y Martinez), and the International Health Division of The Rockefeller Foundation, in cooperation with the National Health Department of Colombia.