The following report is based on the study of about seventy cases of undoubted yellow fever admitted to the lazaretto1 of Guayaquil, Ecuador, from July to September, 1918. Fifty consecutive cases, including all grades of severity, admitted during the latter part of the investigation, were studied carefully according to a definite plan.
The cases observed by no means represent all the cases that occurred in Guayaquil during the period of study, for not all yellow fever patients were concentrated in the lazaretto by the authorities.
An attempt was made to obtain early cases. One patient was admitted during the first day of his illness, ten hours after an abrupt onset; eleven patients were admitted on the second day, and thirteen on the third day. The others were admitted on various days and as late as the ninth day. Nine cases were considered light and forty-one as severe cases. Eleven patients
ELLIOTT CA. A CLINICAL STUDY OF YELLOW FEVER: OBSERVATIONS MADE IN GUAYAQUIL, ECUADOR IN 1918. Arch Intern Med (Chic). 1920;25(2):174–205. doi:10.1001/archinte.1920.00090310057003
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