Final answer:
Balantidiasis is caused by the protozoan parasite Balantidium coli, contracted through the fecal-oral route, and symptoms include diarrhea and abdominal pain. Diagnosis is made by examining feces microscopically, and treatment includes metronidazole or tetracycline.
Step-by-step explanation:
The causative organism of Balantidiasis is Balantidium coli, which is a protozoan parasite. The mode of contraction is primarily through ingesting contaminated water or food with cysts of the parasite. Basic symptoms include diarrhea, abdominal pain, and weight loss. Diagnosis commonly involves microscopic examination of the feces to detect the presence of the parasite, which may require concentration techniques and multiple specimen collections.
Once Balantidiasis is diagnosed, treatment options include medications such as metronidazole or tetracycline. Preventative measures include practicing good hygiene and ensuring safe drinking water to avoid this fecal-oral transmission.