<unk>  infection is usually asymptomatic, but heavy infection often results in weight loss, dizziness, abdominal pain, diarrhea, headaches, nausea, constipation, chronic indigestion, and loss of appetite. Intestinal obstruction in humans can be alleviated by surgery. The tapeworm can also expel antigens that can cause an allergic reaction in the individual. It is also a rare cause of ileus, pancreatitis, cholecystitis, and cholangitis.<unk>  has been reported as a cause of gallbladder perforation if left untreated in some cases.<unk>  adult worms can live in the host for up to 25 years and most infections will last 2 to 3 years without treatment. The<unk>  remains asymptomatic due to the fact the organism does not present cysticerci in humans. Therefore, there is no presence of cysticercosis in humans either. Typically, cysticercosis is a parasitical tissue infection which infect the brain and muscle tissues. However the<unk>  can cause taeniasis, which is an infection. Taeniasis causes weightloss, pain and blockages in the intestines which can potentially become life-threatening.
Taenia saginata
Taenia asiatica
Trichuris trichiura
Taenia solium
Schistosoma mansoni
Ascaris lumbricoides
Schistosoma japonicum
Echinostoma cinetorchis