Molecular identification of the causative agent of human strongyloidiasis acquired in Tanzania: dispersal and diversity of Strongyloides spp. and their hosts

Parasitology International
Hideo HasegawaToshisada Nishida

Abstract

In order to identify the causative agent of imported strongyloidiasis found in a Japanese mammalogist, who participated in a field survey in Tanzania, the hyper-variable region IV (HVR-IV) of 18S ribosomal DNA and partial mitochondrial cytochrome c-oxidase subunit 1 gene (cox1) were analyzed and compared with Strongyloides fuelleborni collected from apes and monkeys of Africa and Japan, and S. stercoralis from humans, apes and dogs. The HVR-IV and cox1 of the patient's worms were identical to or only slightly differed from those of worms parasitic in Tanzanian chimpanzees and yellow baboons, demonstrating that the patient acquired the infection during her field survey in Tanzania. Phylogenetic analysis with the maximum-likelihood method largely divided isolates of S. fuelleborni into three groups, which corresponded to geographical localities but not to host species. Meanwhile, isolates of S. stercoralis were grouped by the phylogenetic analysis into dog-parasitic and primate-parasitic clades, and not to geographical regions. It is surmised that subspeciation has occurred in S. fuelleborni during the dispersal of primates in Africa and Asia, while worldwide dispersal of S. stercoralis seems to have occurred more recently by mig...Continue Reading

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Citations

Jun 5, 2012·Primates; Journal of Primatology·Takanori KooriyamaTakashi Iwaki
Sep 29, 2011·Parasitology·Pavla SmejkalováIvan Čepička
Aug 25, 2011·Veterinary Parasitology·Paul R Torgerson, Calum N L Macpherson
Feb 18, 2014·Parasitology International·Fabian SchärPeter Odermatt
Sep 6, 2012·The Korean Journal of Parasitology·Naoki ArizonoKotaro Onishi
Aug 25, 2017·PLoS Neglected Tropical Diseases·Meruyert BeknazarovaKirstin Ross
Sep 17, 2019·PLoS Neglected Tropical Diseases·Joel L N BarrattRichard S Bradbury
Mar 22, 2014·PLoS Neglected Tropical Diseases·Hideo HasegawaKlára J Petrželková
Jul 16, 2020·Pathogens·Hacène MedkourOleg Mediannikov
May 15, 2020·Parasites & Vectors·Kittipat AupaleeAdrian Streit
Jul 7, 2018·Parasitology Research·Tahmineh Gorgani-FirouzjaeeSalman Ghaffari
Jan 14, 2020·Current Tropical Medicine Reports·Tegegn G Jaleta, James B Lok
Apr 25, 2019·Ecology and Evolution·Liesbeth FriasAndrew J J MacIntosh
Oct 3, 2018·Tropical Medicine and Infectious Disease·Gemma J RobertsonRichard S Bradbury
Jan 9, 2019·International Journal for Parasitology. Parasites and Wildlife·Liesbeth FriasAndrew J J MacIntosh
May 25, 2021·Veterinary Parasitology : Regional Studies and Reports·Sandani S ThilakarathnePiyumali K Perera
Jun 11, 2021·Biomédica : revista del Instituto Nacional de Salud·Jorge Iván Zapata-ValenciaJuliana Peña-Stadlin
Nov 11, 2021·International Journal for Parasitology·Richard S BradburyHideo Hasegawa

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