Bertielliasis

Bertielliasis is the infection of Bertiella - a cestode tapeworm parasite that primarily infects nonhuman primates, rodents and Australian marsupials. Occasionally, human infections have been documented by one of two species: Bertiella studeri, or Bertiella mucronata. These infections present with symptoms similar to most tapeworm cases, and are frequently misdiagnosed. Bertiella transmission is through oribatid mites that are present in the soil of problem areas, and can be easily prevented by avoiding contact with nonhuman primates, rodents and soil in these areas.

Phylum: Platyhelminthes, Class: Cestoda, Order: Cyclophyllidea, Family: Anoplocephalidae, Species: Of 29 different Bertiella species, only two can infect humans: Bertiella studeri (majority of human cases), and Bertiella mucronata.

Bertiella bertiella, Bertiella mucronata , Bertiella studeri, Bertielliasis inermicapsifer.

The suborder of Anoplocephala was named in 1891 by Blanchard, and the family Anoplocephalidae created in 1928 by Mola. Bertia, already named by Blanchard in 1891, was placed in this group. With some shuffling throughout the years, this family remained mostly the same, categorized by its similar transmission by orbatid mites. As of 1994, within the Cyclophyllidea order, Anoplocephalidae is considered one of the four subfamilies established by classifying uterine development, the others being Linstowiinae, Inermicapsiferinae and Thysanosomatinae. Bertia was first described in a chimpanzee as Bertia satyri, and in an orangutan as B. studeri by Blanchard (1891). The genus Berti was later changed to Bertiella on the proposal from Stiles and Hassall (1902), and the human forms were identified as Bertiella studeri and Bertiella mucronata. The first case of human bertielliasis was reported by Blanchard in 1913 of a child in Mauritius.

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