Lab Practicum 2 Protozoan Table Flashcards
Entamoeba histolytica - disease it causes
Amebic dysentery
- Diarrhea
Entamoeba histolytica - infective stage and mode of transmission
Transmitted through fecal and oral route
- Quadranucloate cyst (infections)
- Ingestion (hatches in small intestine)
Entamoeba histolytica - mode of motility
Pseudopod
Entamoeba histolytica - symptoms
Bloody diarrhea (penetrate lining of intestine and causes ulcers)
Entamoeba histolytica - treatment
Metronidazole
Entamoeba histolytica - method of diagnosis
- Some people are asymptomatic carriers (only 10-20% of infected people)
- Stool sample to look for cysts or trophs
Entamoeba histolytica - stages in the life cycle
Cysts - up to 4 nuclei
Trophs - 8 trophs
Balantidium coli - disease it causes
Balantidiosis
- diarrhea
Balantidium coli - infective stage and mode of transmission
Fecal and oral transmission
- Eating contaminated food or drinking water
Balantidium coli - mode of motility
cilia
Balantidium coli - symptoms
Often asymptomatic but can have bloody diarrhea, weight loss, stomach pain, etc.
Balantidium coli - treatment
metronidazole
Balantidium coli - method of diagnosis
Stool sample looking for trophs or cysts in stool sample
Balantidium coli - stages in the life cycle
Cyst - kidney shaped nuclei
Troph - oval
Giardia lamblia (intestinalis) - disease it causes
Giardiasis
- Backpacker’s diarrhea
Giardia lamblia (intestinalis) - infective stage and mode of transmission
Beavers are carriers and shed cysts in the water during a bowel movement
Giardia lamblia (intestinalis) - mode of motility
flagella
Giardia lamblia (intestinalis) - symptoms
Watery diarrhea, fatigue, nausea, flatulence, weakness, weight loss, and abdominal cramps
Giardia lamblia (intestinalis) - treatment
metronidazole
Giardia lamblia (intestinalis) - method of diagnosis
Stool sample to verify cysts and trophs
Giardia lamblia (intestinalis) - stages in the life cycle (cysts, troph, etc)
cysts - up to 4 nuclei
Troph - 2 nuclei + 4 pairs of flagella
Trichomonas vaginalis - disease it causes
Trichnomiasis (STI)
Trichomonas vaginalis - infective stage and mode of transmission
Sexually transmitted infection
Trichomonas vaginalis - mode of motility
flagella
Trichomonas vaginalis - symptoms
Many people asymptomatic
Itching, burning, redness, discomfort w/ urination, change in vaginal discharge
Trichomonas vaginalis - treatment
metronidazole
Trichomonas vaginalis - method of diagnosis
Molecular testing and wet mount of discharge fluid to look for troph
Trichomonas vaginalis - stages in the life cycle
Troph - large nucleus w/ 4 flagella
Trypanosoma brucei - disease
African sleeping sickness
Trypanosoma brucei - infective stage and mode of transmission
Intermediate host: tsetse fly - asexual part of life cycle
Definitive host: sexually transmitted infection
Trypanosoma brucei - mode of motility
undulating membrane
Trypanosoma brucei - symptoms
fever, headaches, muscle and joint aches, and fatigue
Trypanosoma brucei - treatment
pentamidine
Trypanosoma brucei - method of diagnosis
finding parasite in body fluids or tissue by microscopy
Trypanosoma brucei - stages in the life cycle
Trypomastigote - definitive host
Epimastigote - intermediate host
Toxoplasma gondii - disease
Toxoplasmosis
Toxoplasma gondii - infective stage and mode of transmission
consuming food or water contaminated by cat feces or contaminated environmental samples
- injestion of contaminated meat
- from mother to child in utero
Toxoplasma gondii- mode of motility
undulating membrane
Toxoplasma gondii - symptoms
usually asymptomatic
- mild flu like symptoms
- still birth, encephalitis
Toxoplasma gondii - treatment
pyrimethamine
sulfadiazine
Toxoplasma gondii - method of diagnosis
serological tests looking for antibody production
Toxoplasma gondii - stages in the life cycle
Troph
Plasmodium vivax - disease
malaria
Plasmodium vivax - infective stage and mode of transmission
definitive host: cysts in mosquito gut wall -> sporozoites in mosquito saliva
intermediate host: merozoites released by liver
Plasmodium vivax- mode of motility
gliding
Plasmodium vivax - symptoms
chills, nausea, vomiting and headaches, then fever
Plasmodium vivax - treatment
quinine, chloroquine, mefloquine
Plasmodium vivax - method of diagnosis
looking for parasites in the blood, usually by microscopy
Plasmodium vivax - stages in the life cycle
sporozoite: infective to humans
merozoite
ring stage
schizont: multi-nucleic cell
