Giardiasis is a diarrheal disease caused by the microscopic parasite Giardia duodenalis (or “Giardia” for short). Once a person or animal has been infected with Giardia, the parasite lives in the intestines and is passed in stool (poop). Once outside the body, Giardia can sometimes survive for weeks or even months. 26 февр. 2021 г.
Can parasites live outside a host?
Parasites that live outside the host are called ectoparasites (Figure 2A). For example, a flea is a parasite that lives on cats. In contrast, parasites that live inside their hosts are known as endoparasites (Figure 2B).
How long can parasitic worms live outside the body?
Pinworm eggs live up to 2 weeks outside the body on clothing, bedding, toys, toilet seats, or other objects and spread easily. Roundworm (Ascaris lumbricoides):
Can human worms live outside the body?
Tapeworms can live outside for months, waiting for a host to come along. You're most at risk if you work around livestock or travel to a country where hygiene is poor. You can also be infected if you eat or drink something that contains tapeworm eggs or larvae, like raw or undercooked beef or pork.
How long can a parasite live?
Three types of tiny, thread-like worms cause this disease. It's common in the tropics and subtropics. Adult worms can live up to 7 years in a person's lymph system. The disease only spreads from person to person through mosquitoes.
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