Which stage of Taenia saginata is infective for humans?

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Multiple Choice

Which stage of Taenia saginata is infective for humans?

Explanation:
In Taenia saginata, the form that can establish infection in humans is the cysticercus larva inside beef muscle. Humans become infected by eating undercooked beef that contains these cysticerci; once inside the human intestine, the cysticercus develops into the adult tapeworm. The other stages aren’t the forms that initiate human infection. Filariform and rhabditiform larvae are nematode larval forms and not part of Taenia’s life cycle. An embryonated egg is the stage that would enter an intermediate host to form larvae, but for taeniasis from Taenia saginata, infection occurs from cysticerci in beef, not from eggs.

In Taenia saginata, the form that can establish infection in humans is the cysticercus larva inside beef muscle. Humans become infected by eating undercooked beef that contains these cysticerci; once inside the human intestine, the cysticercus develops into the adult tapeworm.

The other stages aren’t the forms that initiate human infection. Filariform and rhabditiform larvae are nematode larval forms and not part of Taenia’s life cycle. An embryonated egg is the stage that would enter an intermediate host to form larvae, but for taeniasis from Taenia saginata, infection occurs from cysticerci in beef, not from eggs.

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