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Parasitology

Parasitology Lab- Microscope Slides
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What is the common name for Enterobius vermicularis?
(Pinworm)
How do humans usually contract Enterobius vermicularis?
Fecal/Oral
Which is the most appropriate specimen collection method for Enterobius vermicularis in the laboratory?
Direct examination of perianal skin with cellophane tape at night or early morning.
What type of disease does Enterobius vermicularis usually cause?
Enterobiasis, Pinworm/ seatworm infection
Enterobius vermicularis
What is the common name for Trichuris trichuria?
Whipworm
How do humans usually contract Trichuris trichuria?
Oral -ingest eggs from infected soil/food
Which is the most appropriate specimen collection method for Trichuris trichuria in the laboratory?
Stool sample
What type of disease does Trichuris trichuria usually cause?
Trichurisis, whipworm infection
Trichuris trichuria
What is the common name for Ascaris lumbricocides?
Roundworm
How do humans usually contract Ascaris lumbricocides?
Oral -ingest eggs from infected soil/food
Which is the most appropriate specimen collection method for Ascaris lumbricocides in the laboratory?
Stool sample
What type of disease does Ascaris lumbricocides usually cause?
Ascariasis/roundworm infection/ large intestinal roundworm infection
What is the common name for Trichinella spiralis?
Trichinella worm
How do human usually contract Trichinella spiralis?
Oral- ingestion of incysted larva in undercooked meat (pork and beef)
Which is the most appropriate specimen collection method for Trichinella spiralis in the laboratory?
biopsed muscle/ serologic testing (EllSA) testing 3 to 4 weeks after infection
What type of disease does Trichinella Spiralis usually cause?
Trichinosis, Trichinellosis
Trichinella Spirallis
Trichinella trichuria (whipworm)
Ascaris lumbricocides
Common name of Nector americanus/ Ancylostoma duodenale
Hookworm
How do humans usually contract Nector americanus/ Ancylostoma duodenale?
eggs shed in feces, penetrate the host skin, especially feet.
Which is the most appropriate specimen collection method for Nector americanus/ Ancylostoma duodenale in the laboratory?
Stool sample
What type of disease does Nector americanus/ Ancylostoma duodenale usually cause?
hookworm disease, dermatitis, microcystic hypochromic anemia
Nector americanus/ Ancylostoma duodenale
Strongyloides stercoralis
How do humans usually contract Strongyloides stercoralis?
filariform larvae penetrate host skin especially feet
Which is the most appropriate specimen collection method for Strongyloides stercoralis in the laboratory?
Stool/Sputum/intestinal radiograph
What types of disease does Stongyloides stercoralis cause?
strongyloidiasis/ threadworm infection
Dracunculus medinenis larvae
How do humans usually contract Dracunculus medinenis larvae?
Which is the most appropriate specimen collection method for Dracunculus medinenis larvae in the laboratory?
Visually observe painful skin blisters or emerging worm.
What type of disease does Dracunculus medinenis larvae cause?
local ulcer formation, dracunculus guinea worm
Wuchereria bancrofti microfilria (Bncroft's filaria)
How do humans usually contract Wuchereria bancrofti microfilaria?
mosquito bite with filariform larvae
Which is the most appropriate specimen collection method for Wuchereria bancrofti microfilaria in the laboratory?
blood sample
What type of disease does Wuchereria bancrofti microfilaria cause?
Elephantitis
Brugia malayi microfilaria
How do humans usually contract Brugia malayi microfilaria?
mosquito bite with filariform larvae
Which is the most appropriate specimen collection method for Brugia malayi microfilaria in the laboratory?
blood sample
What type of disease does Brugia malayi microfilaria cause?
malayan filariasis
Loa loa microfilaria (eyeworm)
How do humans usually contract Loa loa microfilaria?
blood sucking fly bite
Which is the most appropriate specimen collection method for Loa loa microfilaria in the laboratory?
blood sample
What type of disease does Loa loa microfilaria cause?
eyeworm calabar swelling
Onchocera vovulus microfilaria
How do humans contract Onchocera vovulus microfilaria?
blood sucking fly bite
Which is the most appropriate specimen collection method for Onchocera vovulus microfilaria in the laboratory?
blood sample
What type of disease does Onchocera vovulus microfilaria usually cause?
blinding filaria, river blindness
Hymenolepis nana (dwarf tapeworm)
How do humans contract Hymenolepis nana?
Fecal/Oral
Which is the most appropriate specimen collection method for Hymenolepis nana in the laboratory?
Stool sample
What type of disease does Hymenolepis nana cause?
Dwarf tapeworm infection/ mild gastrointestinal symptoms/ diarrhea/ abdominal pain
Taenia saginata/solium
How do human contract Taenia saginata/solium?
eating undercooked beef/pork
Which is the most appropriate specimen collection method for Taenia saginata/solium in the laboratory?
stool sample or proglottids
What type of diseases does Taenia saginata/solium cause?
taenisis
Diphyllobothrium latum
How do humans usually contract Diphyllobothrium latum?
ingested plerocorcoid larvae in undercooked fish
Which is the most appropriate specimen collection method for Diphyllobothrium latum in the laboratory?
stool sample
What type of disease does Diphyllobothrium latum cause?
anemia, diphyllobothriasis, fish tapeworm infection B12 deficiency
Echinococcus granulous Hydatid cyst
How do humans usually contract Echinococcus granulous Hydatid cyst ?
ingestion contact with infected dog
Which is the most appropriate specimen collection method for Echinococcus granulous Hydatid cyst in the laboratory?
biopsy, serologic test (ELISA) indirect hemogglutanation.
What type of diseases does Echinococcus granulous Hydatid cyst cause?
Echinococcosis, Hydatid disease, Hydatidosis
Hymenolepis dimuta
How do humand usually contract Hymenolepis dimuta?
ingestion of cysticercoid larvae in an infected flea or grin beetle.
Which is the most appropriate specimen collection method for Hymenolepis dimuta in the laboratory?
stool sample
What type of diseases does Hymenolepis dimuta usually cause?
Hymenolepiasis
Dipylidium caninum
How do humans usually contract Dipylidium caninum?
ingestion of an infected dog or cat flea
Which is the most appropriate specimen collection method for Dipylidium caninum in the laboratory?
stool sample
What type of diseases does Dipylidium caninum usually cause?
Dipylidium infection, diarrhea nausea and slight abdominal pain
Fasciola hepatica/buski
How do humans usually contract Fasciola hepatica/buski?
ingestion of metacerarie in vegetation or water plants
Which is the most appropriate specimen collection method for Fasciola hepatica/buski in the laboratory?
stool sample
What type of diseases does does Fasciola hepatica/buski usually cause?
fasciolopsiasis/ diarrhea/ bile duct obstruction causing biliary cirrhosis
Clonorchis sinesis
How do humans usually contract Clonorchis sinesis?
ingestion of metacercriae in undercooked fish
Which is the most appropriate specimen collection method for Clonorchis sinesis in the laboratory?
stool sample
What type of diseases does Clonorchis sinesis
usually cause?
clonorchiasis
Paragonimus westermani
How do humans usually contract Paragonimus westermani?
ingestion of metacercriae in undercooked crbs and crawfish.
Which is the most appropriate specimen collection method for Paragonimus westermani in the laboratory?
stool sample/ sputum/ radiograph of lungs
What type of diseases does Paragonimus westermani usually cause?
paragonimasis, pulmonary distomiasis
Heterophyes heterophyes/metagonimus?
How do humans usually contract Heterophyes heterophyes/metagonimus?
ingestion undercooked fish
Which is the most appropriate specimen collection method for Heterophyes heterophyes/metagonimus in the laboratory?
feces- duodenal drainage
What type of diseases does Heterophyes heterophyes/metagonimus usually cause?
heterophyiasis/ metagonimia
Schistosoma mansoni
How do humans usually contract Schistosoma mansoni?
burrow into the capillary bed of the feet, arms and legs by cercaria
Which is the most appropriate specimen collection method for Schistosoma mansoni in the laboratory?
stool sample
What types of diseases does Schistosoma mansoni usually cause?
schistosomiasis, biharziasis, swamp fever
Schistosoma japonicum
How do humans contract Schistosoma japonicum?
burrow into the capillary bed of the feet, arms and legs by cercaria
Which is the most appropriate specimen collection method for Schistosoma japonicum in the laboratory?
stool sample
What types of diseases does Schistosoma japonicum usually cause?
schistosomiasis, biharziasis, swamp fever
Schistosom haematobium
How do humans usually contract Schistosom haematobium?
burrow into the capillary bed of the feet, arms and legs by cercaria
Which is the most appropriate specimen collection method for Schistosoma haematobium in the laboratory?
urine sample
What types of disease does Schistosom haematobium usually cause?
schistosomiasis, biharziasis, swamp fever
Entamoeba histolytica
How do humans contract Entamoeba histolytica?
Fecal/ Oral
Which is the most appropriate specimen collection method for Entamoeba histolytic in the laboratory?
stool sample
What type of diseases does Entamoeba histolytica usually cause?
Amebiasis, amebic dysentary, amebic hepatitis
Blastocystisis hominis
How do human usually contract Blastocystisis hominis?
Fecal/Oral
Which is the most appropriate specimen collection method for Blastocystisis hominis in the laboratory?
stool sample
What types of diseases does Blastocystisis hominis usually cause?
diarrhea, fever, abdominal pain
Acathamoeba
How do humans contract Acathamoeba?
through skin lesions, inhalation of contaminated dust from aerosols, or mucus membrane from brain CSF
Which is the most appropriate specimen collection method for Acathamoeba in the laboratory?
tissue or ocular samples
What types of diseases does Acathamoeba usually cause?
keratitis
Naegleria fowleri
How do humans contract Naegleria fowleri?
entry through nasal passages (mucosa) while swimming in lakes that have the parasite
Which is the most appropriate specimen collection method for Naegleria fowleri in the laboratory?
CSF unrefridgerated (usually found in autopsy)
What types of diseases does Naegleria fowleri usually cause?
PAM-primary amebic meningoencephlitis
Glardia lamblia
How do humans contract Glardia lamblia?
Fecal/Oral
Which is the most appropriate specimen collection method for Glardia lamblia in the laboratory?
stool sample
What types of diseases does Glardia lamblia usually cause?
Traveler's diarrhea
Dientamoeba fragilis
How do humans contract Dientamoeba fragilis?
Fecal/ oral
Which is the most appropriate specimen collection method for Dientamoeba fragilis in the laboratory?
stool sample
What types of diseases does Dientamoeba fragilis usually have?
anorexia, abdominal pain (usually in immunocomprimised patients
Trichomonas vaginalis
How do humans contract Trichomonas vaginalis?
Sexual Intercourse (STD)
Which is the most appropriate specimen collection method forTrichomonas vaginalis in the laboratory?
Urine sample, vaginal smear, urethral discharge
What type of disease does Trichomonas vaginalis usually cause?
Trichomonad vaginalis, urethritis, Trich
Trypanosoma brucei Trypanosoma brucei
bite of the tsetse fly
How do humans contract Trypanosoma brucei?
...
Which is the most appropriate specimen collection method for Trypanosoma brucei in the laboratory?
CSF, Blood smear
What type of disease does Trypanosoma brucei cause?
East and West african Sleeping Sickness
Trypanosoma cruzi
...
How do humans usually contract Trypanosoma cruzi?
Infected feces of the Reduvii bug rubbed into the site.
Which is the most appropriate specimen collection method for Trypanosoma cruzi in the laboratory?
blood sample
What type of disease does Trypanosoma cruzi cause?
Chagas disease
Leishmania tropic/braziliensis/donovni
...
How do humans usually contract Leishmania spp?
bite of the sand fly
Which is the most appropriate specimen collection method for Leishmania spp. in the laboratory?
Fine needle aspiration from the base of the lesion
What type of disease does Leishmania spp. usually cause?
Leishmania tropica: Oriental Boil
Leishmania braziliensis: New World Leishmaniasis
Leishmnia donovani: viseral leishmniasis damdum fever