Eucestoda the "broad tapeworm" or "fish tapeworm") and related species. Humans become infected by eating raw, undercooked, or marinated fish acting as a second intermediate or paratenic host harboring metacestodes or plerocercoid larvae. Clinical symptoms are due to the large size of the tapeworm, which often reaches a length exceeding 15 m. The most common symptom is pernicious anemia, caused by the absorption of vitamin B12 by the worm. Other symptoms include various intestinal issues, slight leukocytosis, and eosinophilia. This condition is caused by the plerocercoid larvae of the tapeworm "Spirometra". Humans become infected by drinking contaminated water, eating raw or
Yeongjo of Joseon and he was able to stay alive. Afterwards, he told his half-brother the king that he rather would go and live as a commoner. On 11 October 1724, King Gyeongjong died. Soron then accused Prince Yeoning of having something to do with his brother's death due to the earlier attempt by the Noron faction to have him replace Gyeongjong on the throne. But historians now agree that he could have died of eating contaminated seafood, as to the symptoms of the illness that caused his death. Homer Hulbert described this in his book "The History of Korea" where he said,