How long does Taenia solium survive in human body?

25 years. When people eat raw or undercooked pork containing cysticercosis by mistake, it takes about two to three months to develop into adults and expel pregnant lymph nodes and eggs. Adults can live up to 25 years in the human body. Taenia solium is a parasite that lives on pigs. Its larvae, whose scientific name is larval, can parasitize the lean meat of pork.