Hymenolepis nana, the dwarf tapeworm, is the smallest tapeworm to infect humans. Eggs of hymenolepis nana are immediately infective when passed with the stool and cannot survive more than 10 days in the external environment. Praziquantel in the treatment of hymenolepis nana infections in children. Niclosamida y nitazoxanida son tratamientos alternativos8. Cdc hymenolepis resources for health professionals. This cestode belongs to a large family known as hymenolepididae. Hymenolepis rodentolepis nana is the most common cestode of humans, particularly in young children.
Education and information about hymenolepiasis, also known as hymenolepis nana infection, biology and life cycle. Infeccion por hymenolepis nana tenia enana enfermedades. Later, morphological characteristics were used for taxonomy identification and h. It is the only cestode that does not require an intermediate host to develop into its infective stage. Diagram showing the life cycle of the dwarf tapeworm hymenolepis nana, the cause of hymenolepiasis. One hundred and fiftyfive hymenolepis nanainfected children were treated with a single oral dose of praziquantel, a new and effective isochinolinpyrazin compound with a broad spectrum of activity against cestodes. Larval and adult beetles but optional larval stage, cysticercoid, can develop in d. It is often referred to as the dwarf tapeworm due to its small size, 24 cm long and only 1 mm wide. Hymenolepiasis is primarily caused by the cestode tapeworm species, hymenolepis nana the dwarf tapeworm, adults measuring 15 to 40 mm in length. Dwarf tapeworm hymenolepis nana, also known as rodentolepis nana, vampirolepis nana, hymenolepis fraterna, and taenia nana is a cosmopolitan species though most common in temperate zones, and is one of the most common cestodes a type of intestinal. Education and information about hymenolepiasis, also known as hymenolepis nana infection, for health professionals. Humans, rodents most common tapeworm of humans in the world 1% rate of infection in the southern u. The adult worm resides in the ileal portion of the small intestine.
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