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To the Editor:
—A baby girl, born on Feb. 8, 1952, had numerous vegetative forms of Endameba histolytica in loose stools examined in our laboratory on Feb. 21, 1952. Numerous leukocytes were seen too. Generally, bacillary dysentery is believed to have a sudden, acute onset, while amebic dysentery is believed to have a long incubation period of months or years. Amebic dysentery appeared in this breast-fed infant by the 13th day of life; the incubation period could not, therefore, have been more than 13 days. We saw by then not only free living amebic forms, three to five per field, but signs of inflammation and pus. On Nov. 28, 1952, the feces of the same baby were again examined in our laboratory, and numerous free living amebic forms were still present. The infant's mother was examined on Nov. 20, 1952, and was found to have free living forms of E.
Weiser J. AMEBIC PATIENT 13 DAYS OLD. JAMA. 1953;152(16):1554. doi:10.1001/jama.1953.03690160054024