CDC - DPDx - Schistosomiasis Infection
Unlike the flukes, adult schistosomes have the sexes separate, with the female residing in a gynecophoral canal within the male. Male worms are robust, tuberculate and measure 6-12 mm in length. Females are longer (7-17 mm in length) and slender.
Schistosoma japonicum - Wikipedia
Males show the highest rates of infection, as well as the most intense infections. This may be due to occupational risk. As was the case of Suriname, the highest prevalence occurs in both sexes where both male and females work in fields. [5] Climate change may have potential impact on the transmission of schistosomiasis in China.
Schistosoma japonicum - ADW
This species reproduces sexually: a male and female worm must mate in the veins of the host before the female can lay eggs (many other flatworms can produce eggs without mating first). Female worms produce enormous numbers of offspring: a single mated pair may release 3,000 eggs per day, and live for over 20 years.
Schistosomiasis - World Health Organization (WHO)
2023年2月1日 · In women, urogenital schistosomiasis may present with genital lesions, vaginal bleeding, pain during sexual intercourse and nodules in the vulva. In men, urogenital schistosomiasis can induce pathology of the seminal vesicles, prostate and other organs.
Schistosomiasis - Schistosomiasis - MSD Manual Consumer Version
Male and female worms pair up and migrate to veins in the intestine or bladder (depending on their species). There, where they remain, and the females begin to lay eggs. Schistosoma mansoni and Schistosoma japonicum typically lodge in small veins of the intestine.
Dynamic transcriptomes identify biogenic amines and insect-like ...
2017年3月13日 · Female schistosomes rely on a unique male-induced strategy to accomplish reproductive development, a process that is incompletely understood. Here we map detailed transcriptomic profiles of...
Schistosoma - Australian Society for Parasitology
Unlike all other trematodes, schistosomes are not hermaphroditic but dioecious, forming separate sexes. Adult worms have elongate tubular bodies, each male having a unique gynecophoral canal (schisto-soma = split body) in which a female worm resides. They live inside visceral blood vessels and are commonly known as blood flukes.
INFECTION WITH SCHISTOSOMES (Schistosoma haematobium, Schistosoma …
Unlike all other pathologically important trematodes, schistosomes are dioecious (rather than hermaphroditic). The adult worms are about 1 cm long, and the male has a deep ventral groove or schist (hence the term ‘schistosome’) in which the female worm resides permanently in copulo.
The male measures 12mm by 0.5mm and female measures 20mm by 0.4mm. Both sexes have a strong sucker around the mouth and the tegument of the worms is coated with tiny spines, ridges and sensory organs. Laboratory Diagnosis: Microscopy: Laboratory confirmation of S. japonicum is by demonstrating the characteristic eggs in faeces.
Three main species of schistosomes infect human beings, Schistosoma haematobium, Schistosoma mansoni, and Schistosoma japonicum. S haematobium and S mansoni both occur in Africa and the Middle East, whereas only. S mansoni is present in the Americas. S japonicum is localised to Asia, primarily the Philippines and China.