Ascaris lumbricoides is the giant roundworm of humans, belonging to the phylum Nematoda. An ascarid nematode, it is responsible for the disease ascariasis in humans, and it is the largest and most common parasitic worm in humans. One quarter of the human population is estimated to be infected by this parasite. Ascariasis is prevalent worldwide and more so in tropical and subtropical countries.
It can reach a length of up to 35 cm.
Read more about Ascaris Lumbricoides: Life Cycle, Morphology, Epidemiology, Infections, Diagnosis and Treatment