Taeniasis is the parasitic infection of humans caused by adult tapeworm species; i.e. Taenia saginata (beef tapeworm), Taenia solium (pork tapeworm) or Taenia asiatica (Asian tapeworm). T. solium and T. saginata have a worldwide distribution but incidence is higher in developing countries where as Taenia asiatica is limited to Asia.
T. solium tapeworm infections can lead to human cysticercosis.
The major differences between T. solium and T. saginata is summarized in this table:
Note: Most of the photo of the parasite posted here are taken from Website of CDC