W. E. DEEKS, M.A., M.D.
JAMA. 1912;LIX(17):1511-1513. doi:10.1001/jama.1912.04270100279005.
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In Ancon post-office, five male clerks and one female are employed. On April 27 the two clerks who handle exclusively the incoming domestic and foreign mails were attacked by chills and fever. Though weak and with no desire for food, they continued at work, and, after six days of continued fever, felt better, and were not sent to the hospital.

Across the street from the post-office, to the south, is a two-storied bachelor apartment, numbered 111, with forty-seven occupants. In the opposite direction areother bachelor apartments, one of which is numbered 69.

Of these, there have been afflicted the five male postoffice clerks (the female escaped), one man from house No. 69 and fourteen from house No. 111. The latter were almost all roomers on the upper floor. This makes in all twenty cases from this vicinity, whence it has spread to Panama.

On May 7, ten days after the


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