Hymenolepsis nana

The only human tapeworm with no intermediate host
Epidemiology It is most common in warm, dry climates; infection is by direct transmission, often among families, and in institutions; the eggs hatch in stomach and small intestine, penetrate villi and metamorphose into cercocysts; recalcitrant infections are maintained by autoinfection
Treatment Praziquantel, niclosamide

Hymenolepsis nana

A dwarf tapeworm that commonly infests children living in poor conditions in tropical areas. Children are infected directly by ingesting the eggs and no intermediate host is involved. Heavy infestations can cause ENTERITIS.
References in periodicals archive ?
The highest frequency (53.29%) comprises of those children that have Ascaris lumbricoides, while Hymenolepsis nana was found in 20% children23.We suggest that effective and continuous de-worming should be a component of health care programs for children as proved by previous literature.24 An integrated and concreted approach from the doctors especially pediatricians and school teachers are a dire need of the time in educating the children and their mothers about importance of simple measures like hand washing and good sanitation setups for prevention of worm infestation.
Hymenolepsis nana was second prevalent in our study (25%).
Intestinal worms which are known to be a potential health hazard and could be found in such areas are Roundworm (Ascarislumbricoides); Whipworm (Trichuristrichuria); Pinworm (Enterobiusvermicularis); Tapeworm (Taeniasaginata, Taeniasolium); Threadworm (Strongyloidesstercoralis); and Hymenolepsis nana.7-9
(%) positive results available intestinal parasites 217 96 (44.2) * Tuberculosis 181 49 (27.1) ([dagger]) Malaria 52 7 (13.5) Hepatitis A virus 161 14 (8.7) Hepatitis B virus 233 6 (2.6) Syphilis 215 0 ([dagger] [double dagger]) Hepatitis C virus 219 0 ([dagger] [double dagger]) HiV 218 1 (0.5) ([double dagger]) * Evidence of infection with [greater than or equal to]1 of the following: Giardia intestinalis flagellates (n = 75, 34.6%), Blastocystis hominis protozoa (n = 34, 15.7%), Hymenolepsis nana tapeworms (n = 2, 0.9%), Dientamoeba fragilis protozoa (n = 2, 0.9%), Ascaris lumbncoides roundworms (n = 2, 0.5%), or Tnchuns trichiura roundworms (0.5%).
dispar, four had Ascaris lumbricoides, three had Ancylostoma duodenale and two had Hymenolepsis nana. Opportunistic parasites were C.