legislate on sth In the interests of balancing the economy, Congress must legislate on trade. legislate to do sth Several ministers are legislating to ban political donations from people not registered to vote.
E. vermicularis, commonly referred to as the pinworm or seatworm, is a nematode, or roundworm, with the largest geographic range of any helminth. 1 It is the most prevalent nematode in the United States. Humans are the only known host, and about 209 million persons worldwide are infected.. lamblia. G. lamblia is a pear-shaped, flagellated protozoan (Figure 2) that causes a wide variety of gastrointestinal complaints. Giardia is arguably the most common parasite infection of humans worldwide, and the second most common in the United States after pin-worm.
Parasitic infections can be caused by three types of organisms: protozoa, helminths, and ectoparasites. Protozoa are single-celled organisms that can live and multiply inside of humans. Some infections caused by protozoa include giardiasis.This is a serious infection that can happen from drinking water infected with the protozoa. Helminths are multi-celled organisms that can live alone or in humans. These are commonly known as worms and include flatworms, tapeworms, ringworms, and roundworms.arasitic infections can be caused by three types of organisms: protozoa, helminths, and ectoparasites. Protozoa are single-celled organisms that can live and multiply inside of humans. Some infections caused by protozoa include giardiasis.