Ascaris lumbricoides

Ascaris lumbricoides is a large roundworm that infects the intestines of humans, often causing a condition called ascariasis. It is transmitted through contaminated food and water, particularly in areas with poor sanitation. Infection can lead to symptoms like abdominal pain, nausea, and malnutrition, but some people may remain symptom-free. The eggs of the worm can survive in the environment for a long time. Treatment typically involves medication to eliminate the worms, and prevention focuses on improving hygiene and sanitation practices to reduce exposure to contaminated sources.