Which operculated cestode egg can be recovered from human feces?

The operculated cestode egg that can be recovered from human feces is associated with Diphyllobothrium latum. This species is known as the fish tapeworm and is characterized by its large size and the unique structure of its eggs. The eggs of Diphyllobothrium latum are operculated, meaning they have a lid-like structure on one end. This is a distinguishing feature that helps in identifying the egg during microscopic examination of fecal samples.

The life cycle of Diphyllobothrium latum involves aquatic environments and fish hosts, making it relevant for human cases when individuals consume raw or undercooked fish that contain the larvae. Infection can lead to a range of gastrointestinal symptoms, including but not limited to abdominal discomfort and vitamin B12 deficiency due to the tapeworm's ability to absorb this vitamin from the host.

In contrast, Clonorchis sinensis is not a cestode but a trematode (fluke), which does not possess operculated eggs and is primarily associated with liver infections. Paragonimus westermani is also a trematode that affects the lungs and produces eggs that do not have an operculum. Dipylidium caninum, while a cestode,