Parasites: Difference between revisions

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* Eukaryotic single- or multi-cellular organisms
+
* Eukaryotic single- or multi-cellular organisms that benefit from a relationship with a host organism, which is harmed in the process
  +
** Compare to mutualism or commensalism
 
  +
* Includes [[protozoa]], [[helminths]], and [[ectoparasites]]
== Single-celled (protozoa) ==
 
* '''Amoebae''': pseudopodia
 
** Obligate parasites
 
*** Non-pathogenic
 
**** ''[[Entamoeba coli]]'', ''[[Entamoeba dispar]]'', ''[[Entamoeba hartmanii]]'', and ''[[Entamoeba polecki]]''
 
**** ''[[Endolimax nana]]''
 
**** ''[[Iodamoeba buetschlii]]''
 
*** Pathogenic
 
**** ''[[Entamoeba histolytica]]''
 
**** ''[[Blastocystis hominis]]'' (maybe)
 
** Facultative free-living parasites
 
*** ''[[Naegleria fowleri]]'': causes [[primary amoebic meningoencephalitis]]
 
*** ''[[Balamuthia mandrillaris]]'': causes [[granulomatous amoebic encephalitis]]
 
*** [[Acanthamoeba species]]: cause [[granulomatous amoebic encephalitis]] and [[amoebic keratitis]]
 
* '''Flagellates''': regular flagella or kinetoplastic flagella
 
** Non-kinetoplastic flagellates
 
*** Pathogenic
 
**** Intestinal: ''[[Giardia lamblia]]'' and ''[[Dientamoeba fragilis]]''
 
**** Genitourinary: ''[[Trichomonas vaginalis]]''
 
*** Non-pathogenic
 
**** Intestinal: ''[[Chilomastix mesnili]]'', ''[[Pentatrichomonas hominis]]''
 
**** Oral: ''[[Trichomonas tenax]]''
 
** Kinetoplastid flagellates: flagellated protozoa with DNA inside large mitochondria at one end
 
*** [[Trypanosoma species]]
 
**** ''[[Trypanosoma cruzi]]'': causes [[American trypanosomiasis]]
 
**** ''[[Trypanosoma brucei]]'': causes [[human African trypanosomiasis]]
 
***** ''[[Trypanosoma brucei]]'' subsp. ''gambiense'': causes [[West African trypanosomiasis]]
 
***** ''[[Trypanosoma brucei]]'' subsp. ''rhodesiense'': causes [[East African trypanosomiasis]]
 
***** Other subspecies have case reports of causing human disease
 
*** [[Leishmania species]]
 
**** Old World, visceralizing: ''L. infantum'', ''L. donovani'' (in India)
 
**** Old World, tegumentary: ''L. infantum'', ''L. donovani'' (Sri Lanka), ''L. major'', ''L. tropica''
 
**** New World, visceralizing: ''L. chagasi'' (genetically identical to ''L. infantum'')
 
**** New World, tegumentary:
 
***** Viannia group (should be treated systemically): ''L. braziliensis'', ''L. panamensis'', ''L. guyanensis''
 
***** Leishmania group (may need only local treatment): ''L. mexicana''
 
* '''Apicomplexa''': gliding, sexual reproduction
 
** Hemosporidia
 
*** [[Plasmodium species]]
 
*** [[Babesia species]]
 
** Coccidia (not a microbiologically-sound category)
 
*** Blood and tissue
 
**** ''[[Toxoplasma gondii]]''
 
**** [[Sarcocystis species]]
 
*** Gut
 
**** [[Cryptosporidium species]]
 
**** ''[[Cyclospora cayetanensis]]''
 
**** [[Cystoisopora species]]
 
**** [[Sarcocystis species]]
 
* '''Ciliates''': cilia
 
** ''[[Balantidium coli]]''
 
 
== Multicellular (helminths) ==
 
* '''Nematodes''' (roundworms)
 
** Filarial/filariasis
 
*** [[Lymphatic filariasis]] (elephantiasis)
 
**** ''[[Wuchereria bancrofti]]''
 
**** ''[[Brugia malayi]]''
 
**** ''[[Brugia timori]]''
 
*** Subsutaneous/tissue
 
**** ''[[Onchocerca volvulus]]''
 
**** ''[[Loa loa]]''
 
*** Serous
 
**** ''[[Mansonella perstans]]''
 
**** ''[[Mansonella ozzardi]]''
 
** Non-filarial
 
*** Soil-transmitted
 
**** ''[[Ascaris lumbricoides]]'' (great roundworm)
 
**** ''[[Trichuris trichiura]]'' (whipworm)
 
**** Hookworm
 
***** ''[[Ancylostoma duodenale]]'' (Old World hookworm)
 
***** ''[[Necator americanus]]'' (New World hookworm)
 
**** ''[[Strongyloides stercoralis]]'' (threadworm)
 
*** Non-soil-transmitted
 
**** ''[[Enterobius vermicularis]]'' (pinworm)
 
**** ''[[Trichinella spiralis]]''
 
**** ''[[Balisascaris procyonis]]''
 
**** ''[[Dracunculus medinensis]]'' (Guinea worm)
 
**** ''[[Angiostrongylus cantonensis]]''
 
**** ''[[Anisakis]]'' (herring worm)
 
**** ''[[Gnathostoma]]''
 
* '''Cestodes''' (tapeworms)
 
** ''[[Taenia saginata]]''
 
** ''[[Taenia solium]]''
 
*** Adult worm
 
*** Neurocysticercosis
 
** ''[[Echinococcus]]''
 
** ''[[Diphyllobothrium]]''
 
* '''Trematodes''' (flatworms/flukes)
 
** Lung
 
*** ''[[Paragonimus]]''
 
** Liver
 
*** ''[[Fasciola hepatica]]''
 
*** ''[[Opisthorchis viverrini]]'' & ''[[Clonorchis sinensis]]''
 
** Intestinal
 
*** ''[[Fasciolopsis]]''
 
** ''[[Schistosoma]]''
 
*** ''[[Schistosoma haematobium]]''
 
*** ''[[Schistosoma mansoni]]''
 
 
== Ectoparasites ==
 
* Fleas
 
* Lice
 
** Body lice
 
** Head lice
 
** Pubic lice
 
* [[Scabies]]
 
* Myiasis
 
** ''[[Dermatobia hominis]]'' (human botfly)
 
** ''[[Cordylobia anthropophaga]]'' (tumbu fly)
 
** ''[[Cochliomyia hominivorax]]'' (New World screwworm fly)
 
** ''[[Chrysomya bezziana]]'' (Old World screwworm fly)
 
* Tungiasis
 
** ''[[Tunga penetrans]]''
 
   
 
[[Category:Organisms]]
 
[[Category:Organisms]]

Latest revision as of 19:15, 18 December 2019

  • Eukaryotic single- or multi-cellular organisms that benefit from a relationship with a host organism, which is harmed in the process
    • Compare to mutualism or commensalism
  • Includes protozoa, helminths, and ectoparasites