The incubation period of oriental sore is estimated in days, weeks, months or years. In the majority of instances this period seems to be from two to seven months. Manson-Bahr1 (1942) stated that sometimes it may be brief, a few days or weeks; this seems to be established by the appearance of the sore within a short time of a subject's arrival in an endemic district or after inoculation. He also stated that it may be as long as fifteen months.
Marzinowsky2 (1909) was the first to inoculate himself, and a sore developed seventy days after inoculation. Wenyon3 (1912) inoculated himself with oriental sore in Aleppo, and six and a half months later a papule appeared at the site of the inoculation, whereas Patton4 (1912) acquired a sore sixteen days after inoculation. Keelan5 (1913) reported a case in which the sore made its first
BERBERIAN DA. CUTANEOUS LEISHMANIASIS (ORIENTAL SORE): II. INCUBATION PERIOD. Arch Derm Syphilol. 1944;50(4):231–232. doi:10.1001/archderm.1944.01510160003001
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