Hymenolepis nana, a tiny intestinal tapeworm, is the most common human cestode; it is treated with praziquantel.
(See also Overview of tapeworm infection.)
Hymenolepis nana, a tiny intestinal tapeworm, is the most common human cestode; it is treated with praziquantel. (See also Overview of tapeworm infection.) H. nana is only 15-40 mm long. He only needs a host, but can also passage the two hosts. Its larvae migrate within the intestinal wall, and he lives only a short time (4-6 weeks). H. nana is in poor and living in poor sanitary conditions of the population more frequently, especially when fleas are present. H. nana has 3 modes of infection: Indirect Two host cycle: Rodents are the primary definitive hosts and grain beetle, fleas and other insects that nourish from contaminated rodent excreta, act as intermediate hosts. People can become infected by ingestion of parasitized insects. Human-to-human oral-anal cycle: The eggs are passed from one person to the next or cycling externally in a single host. Internal autoinfection: Eggs hatch within the intestine and form a second generation without ever leaving the host. A car infection can lead to considerable quantities of worms, which in turn can cause nausea, vomiting, diarrhea, abdominal pain, weight loss and nonspecific systemic symptoms. The infections are often asymptomatic but severe infections can cause spasmodic abdominal pain, diarrhea, anorexia, weight loss and pruritus ani. The diagnosis is made by the detection of eggs in stool samples. Alternatively therapy praziquantel nitazoxanide or outside the US Niclosamid The treatment of choice for H. nana infection is praziquantel 25 mg / kg p.o. once Among the alternatives include nitazoxanide and niclosamide in the USA (not available). 500 mg po: For nitazoxanide dosage for patients> 11 years 2 times daily for 3 days for children aged 4-11 years. Po 200 mg 2 times daily for 3 days for children aged 1-4 years. Po 100 mg . 2 times daily for 3 days for Niclosamid the dosage for adults is: 2 g p.o. 1 twice daily for 7 days for children> 34 kg: 1.5 g in a single dose on day 1, then 1 g once / day for 6 days for children from 11 to 34 kg: 1 g as a single dose on day 1, then 500 mg once / day for 6 days