Search results
Results From The WOW.Com Content Network
Adult trematodes lay smaller numbers of eggs compared to cestodes or nematodes. However, the egg develops into a miracidia from which thousands of cercariae , or swimming larvae, develop. This means that one egg may produce thousands of adult worms. [ 15 ]
Nematodes are very small, slender worms. Most are free-living, often less than 2.5 mm long and some only about 1 mm. Many nematodes are microscopic. Some soil nematodes can reach up to 7 mm in length, and some marine species can reach up to 5 cm. Some are parasitic and can reach lengths of 50 cm or more. [42]
Cestoda is a class of parasitic worms in the flatworm phylum (Platyhelminthes). Most of the species—and the best-known—are those in the subclass Eucestoda ; they are ribbon-like worms as adults, commonly known as tapeworms .
Trematodiasis is a group of parasitic infections caused by different species of flukes, in humans mainly by digenean trematodes. [4] Symptoms can range from mild to severe depending on the species, number and location of trematodes in the infected organism. [1]
A nematode infection is a type of helminthiasis caused by organisms in the nematode phylum. [1] An example is enterobiasis. Several antinematodal agents are available.
Over 140 gastropod species from 20 families are known intermediate hosts for nematode and trematode species that affect hundreds of millions of people in around 90 countries. [1] Moreover, its estimated over 18,000 digenean trematode species and approximately 50 metastrongyloid nematode species use gastropods as their intermediate hosts and are ...
It is a nematode (roundworm) and a common intestinal parasite or helminth, especially in humans. [7] The medical condition associated with pinworm infestation is known as pinworm infection ( enterobiasis ) [ 8 ] (a type of helminthiasis ) or less precisely as oxyuriasis in reference to the family Oxyuridae .
With its draft genome sequence published in 2015, F. hepatica is known to have the largest nuclear genome size among trematodes so far sequenced. It is about 1.3 Gb, [30] which is two times that of Opisthorchis viverrini with 634.5 Mb, the second largest genome among trematodes. [31] The genome is contained in 10 pairs of chromosomes.