RT Book, Section
A1 Vennervald, Birgitte Jyding
A2 Jameson, J. Larry
A2 Fauci, Anthony S.
A2 Kasper, Dennis L.
A2 Hauser, Stephen L.
A2 Longo, Dan L.
A2 Loscalzo, Joseph
SR Print(0)
ID 1159155511
T1 Schistosomiasis and Other Trematode Infections
T2 Harrison's Principles of Internal Medicine, 20e
YR 2018
FD 2018
PB McGraw-Hill Education
PP New York, NY
SN 9781259644016
LK accessmedicine.mhmedical.com/content.aspx?aid=1159155511
RD 2024/04/24
AB Trematodes,  or  flatworms,  are  a  group  of  helminths  that  belong  to  the  phylum  Platyhelminthes.  The  adult  flatworms  share  some  common  characteristics,  such  as  macroscopic  size  (from  one  to  several  centimeters);  dorsoventrally  flattened,  bilaterally  symmetric  bodies;  and  two  suckers—oral  and  ventral.  Except  for  schistosomes,  which  have  separate  sexes,  all  human  parasitic  trematodes  are  hermaphroditic.  Their  life  cycles  involve  a  mammalian/human  definitive  host,  in  which  sexual  reproduction  by  adult  worms  takes  place,  and  an  intermediate  host  (snails),  in  which  asexual  multiplication  occurs.  Some  species  of  trematodes  have  more  than  one  intermediate  host.