Amoebiasis is a medical condition caused by the parasite called Entamoeba histolytica. The correct answer to the question is option 1: Dysentery. Dysentery refers to an infection of the intestines that leads to severe diarrhea with the presence of blood or mucus in the stool. Amoebiasis typically affects the large intestine and causes inflammation and ulcers in the colon. This can result in symptoms such as abdominal pain, cramping, and frequent, loose stools containing blood and mucus.

Options 2, 3, and 4 are incorrect for Amoebiasis. While fever, severe cold, headache, and cold-like symptoms may occur in some individuals with Amoebiasis, they are not the defining characteristics of the condition. The main clinical manifestation of Amoebiasis is dysentery.