Hymenolepis nana


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Hy·me·nol·e·pis na·'na

the dwarf or dwarf mouse tapeworm; a small tapeworm in humans, sometimes found in great numbers in the intestine; the cysticercoid can develop by two pathways: in the final host, with the egg from one human directly infective to another human host, in which both larval and adult stages occur, or through two hosts, an insect (or crustacean) intermediate and a vertebrate final host, the obligate two-host cycle of most cyclophylidean cestodes; in addition, Hymenolepis nana can internally reinfect the same human or rodent host, producing a massive reinfection.

Hy·me·nol·e·pis na·'na, var. fra·ter·'na

a race, strain, or subspecies of Hymenolepis nana adapted to mice, although infectivity to humans may remain; the human form, Hymenolepis nana, presumably is derived from the rodent strain.
Farlex Partner Medical Dictionary © Farlex 2012

Hymenolepis nana

A species parasitic in the intestine of rats and mice and common in humans, esp. children. It averages about 1 in (2.51 cm) in length and differs from other tapeworms in that it is capable of completing its life cycle within a single host. The parasite in humans lives in the proximal ileum and can cause severe toxic symptoms, esp. in children, including diarrhea, abdominal pain, irritability, and convulsions that resemble epilepsy. The detection of eggs and gravid segments in the feces confirms the diagnosis of infestation with this parasite. Treatment is with praziquantel. Synonym: dwarf tapeworm; mouse tapeworm; rat tapeworm
See also: Hymenolepis
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
(22.2%), Entamoeba histolytica (21.8%), Giardia intestinalis (14.4%), Ascaris lumbricoides (6.2%), Trichuris trichiura (1.1%), and Hymenolepis nana (2.7%) were found in the dwellers of low socioeconomic areas.
Among the helminths hookworm was highest followed by Ascaris lumbricoides, Enterobius vermicularis, Hymenolepis nana and Strongoloides larvae respectively.
% L M I Ascaris lumbricoides 25 12,9 76,0 16,0 8,0 Trichuris trichiura (e) 6 3,1 100,0 0,0 0,0 Ancilostomideos 138 71,1 74,6 8,8 16,6 Strongyloides stercoralis 43 22,2 93,0 0,0 7,0 Hymenolepis nana (f) 38 19,6 0,0 0,0 0,0 Total (c) 152 78,4 0,0 0,0 0,0 LPN (n = 120) (c) Intensidad de la infestacion, (d) % Especie No.
(Entamoeba histolytica and Entamoeba dispar (7.05%); cysts of both parasites are similar) Giardia lamblia (4.4%) Enterobius vermicularis (3.2%) Hymenolepis nana (5.7%) Taenia species (5.1%) Fasciola species (5.1%) Toxocara species (3.8%) and the least observed parasite was Toxoplasma gondii (1.9%).
The egg positive rates for helminthic infestation were 4.3%, 0.7%, 0.2%for Ascaris lumbricoides, Trichuris trichura and, Hymenolepis nana respectively.
La prevalencia general fue de 57,1% de Entomoeba histolytica o Entomoeba dispar, 35,5% de Ascaris lumbricoides, 34,0% de Escherichia coli, 21,1% de Giardia intestinalis (lamblia), 11,3% de Hymenolepis nana, 8,9% de Cryptosporidium parvum, 1,7% de Chilomastix mesnili, 1,0% de Hymenolepis diminuta, 0,7% de Strongyloides stercoralis y 0,5% de Trichuris trichiura.
5 (1.4) 3 (0.9) Hymenolepis nana 7 (1.9) 6 (1.8) Taenia spp.
Estos roedores actuan como hospederos definitivos para Hymenolepis diminuta, Hymenolepis nana (=Rodentolepis nana) e Hymenolepis microstoma (Nkouawa et al.
Laboratuvarlar icin potansiyel risk olusturan diger parazit grubu icerisinde Echinococcus spp., Hymenolepis nana ve Taenia solium gibi sestod parazitler yer alir.
The current study was aimed to assess the prevalence of Taenia saginata and Hymenolepis nana (tapeworms) infections among farmers, education concerned and shepherds of Swat, Pakistan.
(3%), hookworms (2%), Hymenolepis nana (1%), Strongyloides stercoralis (1%), Enterobius vermicularis (0.6%), and Schistosoma mansoni (0.6%) were the helminths detected.