infectious diseases
Overview of Tapeworm Infections
Symptoms and Signs of Tapeworm Infections
 can cause abdominal discomfort, diarrhea, and weight loss; members of the family Diphyllobothriidae can cause Vitamin B12 Deficiency and In contrast to adult tapeworms, larvae can cause severe and even lethal disease when they develop in extraintestinal sites, most importantly in the brain, but also in the liver, lungs, eyes, muscles, and subcutaneous tissues. In humans, the larval form ofT. soliumcauses cysticercosis, and the larval forms ofEchinococcus granulosusandEchinococcus multiloculariscause cystic hydatid disease and alveolar disease, respectively.T. saginatadoes not cause cysticercosis in humans. It is not clear ifT. asiaticacauses cysticercosis in humans or not. Rarely, larvae ofSpirometraspecies,Sparganum proliferum,Taenia multiceps,Taenia serialis,Taenia brauni, andTaenia glomeratuscan also infect humans, producing mass lesions in subcutaneous tissue or muscle, and less commonly, brain or eye depending on the infecting species. 