Parisitology Flashcards
Commensalism
One organism derives benefit from the association, whereas the other neither benifits or is harmed
What parasitic disease kills more people worldwide than any other parasitic infection
Malaria
Malaria
Responsible organism and transmission
Plasmodium
Mosquito bites
Protozoal disease
African sleeping sickness
Responsible organism and transmission
Trypanosoma brucei
Tsetse fly bites
Protozoal disease
Chaga’s disease
Responsible organism and transmission
Trypanosoma cruzi
Kising bug feces
Protozoal disease
Shistosomiasis
Responsible organism and transmission
Shistosoma
Transmitted through water
Parasitic worm disease
Filariasis
Responsible organism and transmission
Wuchereria bancrofti
Transmitted through mosquito bites
Parasitic worm disease
River blindness
Responsible organism and transmission
Onchocerca volvulus
Transmitted through Blackfly bites
Parasitic worm disease
Hookworm infection
Responsible organism and transmission
Necator americanus
Contact with contaminated soil
Parasitic worm disease
Ascariasis
Responsible organism and transmission
Ascaris lumbricoides
Contact with contaminated soil
Parasitic worm disease
ID organisms in figure
- Trypanosoma
- Leishmania
- Plasmodium/crytosporidium
- Trichomonas
- Giardia
- Entamoeba
ID organisms in figure
Examples of parasitic helminths
Nematodes
Roundworm
Helminths
Flatworms
Trematodes (i.e. flukes) and cestodes (i.e. tapeworms)
Helminths
Life cycle of giardia
Simple/direct
Simple/direct parasitic life cycle implications
- Must be able to leave its host
- Must be able to survive in the external environment
- Must be able to locate and establish itself in a new host
Complex/indirect parasitic life cycle
Has two or more host
-A secondary (intermediate) host
-A primary (definitive) host - typically where sexual replication take place
Life cycle of malaria
Complex/indirect
Top five neglected parasitic infections w/i the US
- Chagas disease
- Neurocysticerocosis
- Toxocariasis
- Toxoplasmosis
- Trichomoniasis
Leishmaniasis
Responsible organism and transmission
Leishmania
Sandfly bites
Protozoal disease