Helminth and protozoa infections remain an important public health problem in tropical and underdeveloped countries. The adult stage of Taenia saginata is one of the most common pathogenic cestode in humans. This tapeworm is transmitted by raw beef consumption. Infected individuals may remain asymptomatic for years, and the only symptom may be the spontaneous passage of proglottids. However, no...

Neoplasms occur naturally in invertebrates but are not known to develop in tapeworms. We observed nests of monomorphic, undifferentiated cells in samples from lymph-node and lung biopsies in a man infected with the human immunodeficiency virus (HIV). The morphologic features and invasive behavior of the cells were characteristic of cancer, but their small size suggested a nonhuman origin. A pol...

Human neurocysticercosis, caused by the larval stage of the tapeworm Taenia solium, is an important neurological disorder reported as a major cause of epilepsy. An important risk factor for neurocysticercosis is the presence of human T. solium carriers who, upon open defecation, disseminate tapeworm eggs, which are infective to both humans and pigs. In the latter, infection also results in cyst...

Male fern has been commonly used for manyyears as an anthelmintic against cestodes, though its administration is very troublesome and even risky to the host. Maplestone and Mukerji (1931) mention trying of tetrachlorethylene in three cases of Tcenia saginata infection with apparently no effect. But their further experience with tetrachlorethylene (Maplestone and Mukerji, 1937) claim the drug as...

1. Manelfe C, Pasquine U, Banks WOo Metrizamide demonstration of the subarachnoid space surrounding the optic nerves. J Comput Assist Tomogr 1978;2: 545-547 2. Haughton VM , Davis JP, Eldevik OP, Gager WE. Optic nerve sheath imaging with metrizamide. lnvest Radio/1978 ;13 :544 3. Haughton VM , Davis JP, Harris GJ, Ho KC. Metrizamide optic nerve sheath opacification. Invest Radiol 1980; 15(4): 3...

Neurocysticercosis (NCC) is a parasitic infection of the central nervous system caused by Taenia solium larval cysts. Its epidemiology in cysticercosis-nonendemic regions is poorly understood, and the role of public health institutions is unclear. To determine the incidence of NCC and to pilot screening of household contacts for tapeworms, we conducted population-based active surveillance in Or...

Human and porcine cysticercosis is caused by the larval stage of the flatworm Taenia solium (Cestoda). Infestation of the human brain, also known as neurocysticercosis, is the most common parasite disease of the central nervous system worldwide. Significant advances in the understanding of the disease have been achieved using the Taenia crassiceps murine model. We describe here a successful tra...

THE TAPEWORM and roundworm parasites reported to affect cattle tliroughoiit the world comprise over 70 different species. Although some species occur infrequently and others are comparatively harmless to their bovine hosts, some exact a heavy annual toll from the beef and dairy industries. Losses are due to deaths from gross parasitism, lowered vitality and resultant poor growth and performance...

Males and females often differ in their susceptibility and exposure to infection. Thus, they may also differ in their ability to avoid infection. The beetle, Tenebrio molitor, risks infection with cysticercoids when ingesting rat feces containing eggs of the tapeworm, Hymenolepis diminuta. Previous studies demonstrated that beetles sometimes prefer infective feces suggesting that the tapeworm i...