Number of the records: 1
Adult hookworms (Necator spp.) collected from researchers working with wild western lowland gorillas
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SYSNO ASEP 0463450 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Adult hookworms (Necator spp.) collected from researchers working with wild western lowland gorillas Author(s) Kalousová, B. (CZ)
Hasegawa, H. (JP)
Petrželková, Klára Judita (BC-A) RID
Sakamaki, T. (JP)
Kooriyma, T. (JP)
Modrý, David (BC-A) RID, ORCIDArticle number 75 Source Title Parasites & Vectors. - : BioMed Central - ISSN 1756-3305
Roč. 9, FEB 9 (2016)Number of pages 6 s. Publication form Online - E Language eng - English Country GB - United Kingdom Keywords Necator spp ; Necator gorillae ; Necator americanus ; hookworm ; morphology ; human infection Subject RIV EB - Genetics ; Molecular Biology Institutional support BC-A - RVO:60077344 UT WOS 000369575800001 EID SCOPUS 84956919956 DOI 10.1186/s13071-016-1357-0 Annotation BACKGROUND:
In general, studies on the diversity of strongylid nematodes in endangered host species are complicated as material obtained by non-invasive sampling methods has limited value for generic and species identification. While egg morphology barely allows assignment to family, the morphology of cultivated infective third stage larvae provides a better resolution at the generic level but cannot be used for exact species identification. Morphology-based taxonomic approaches greatly depend on the examination of adult worms that are usually not available.
METHODS:
Hookworm parasites in two European researchers, who participated in gorilla research in the Central African Republic, were expelled after anthelmintic treatment to the faeces, collected and morphologically examined. A male worm discharged naturally from a wild bonobo (Pan paniscus) in Congo was also examined for comparison.
RESULTS:
Two species of Necator were identified in researchers' faecal material: Necator americanus (Stiles, 1902) and N. gorillae Noda & Yamada, 1964; the latter species differed in having a smaller body, smaller buccal cavity and shorter spicules with spade-shaped membranes situated distally. Males of N. gorillae also possessed unusual cuticular thickenings on the dorsal side of the prebursal region of the body. These characters, shared with the male worm from the bonobo, correspond well to the description of N. gorillae described from gorillas in Congo.
CONCLUSIONS:
Based on the morphology of the hookworms recovered in this study and previous molecular analyses of larvae developed from both humans and western lowland gorillas (Gorilla gorilla gorilla) from this locality, we conclude that the researchers became infected with gorilla hookworms during their stay in the field. This is the first report of infection with a Necator species other than N. americanus in humans.Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2017
Number of the records: 1