Parasitology

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Parasitology Lab- Microscope Slides

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

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