Lecture 7 Flashcards
How many protozoan parasites are there
6
Name all the protozoan parasites
Giardia lamblia
Trichomonas vaginalis
Toxoplasma gondii
Plasmodium spp.
Cryptosporidium spp. (C.parvum)
Cyclospora cayetanensis
Name all the metazoan parasites
Enterobius vermicularis
Trichinella spp.
Diphyllobothrium
Taenia
Schistosoma spp.
Failure to thrive in young children can be associated with what parasite
Giardia lamblia
True or false:
Most Giardia lamblia infections are asymptomatic
True
What is the most common protozoan infection of intestinal tract worldwide
Giardia lamblia
What form of microscopy should be used to find giardia lamblia
Bright field microscopy
What are the three different forms of testing for giardia lamblia
String test
Microscopy
Immunological testing
Can you treat giardia lamblia
Yes
True or false:
Giardia lamblia can be water borne, food borne and transmitted faecal-orally
True
Name 3 ways giardia lamblia can be transmitted
Water
Food
Faecal matter
What is the most common sexually transmitted disease worldwide
Trichomonas vaginalis
How is trichomonas vaginalis transmitted
Through mucus membrane contact
Infection of trichomonas vaginalis during pregnancy can cause what
Premature delivery
Low birth weight
Can trichomonas vaginalis be treated
Yes
What parasite has cats as the definitive host
Toxoplasma gondii
What are three ways of transmission of toxoplasma gondii
Ingestion of sporulated oocysts
Ingestion of tissue cycsts
Congenital infection of fetus
Can toxoplasma gondii cause congenital infections
Yes
What parasite causes malaria
Plasmodium spp.
What parasite can cause issues in the lymph nodes
Toxoplasma gondii
Spiking fever and chills can be attributed to what parasite
Plasmodium spp.
How is plasmodium parasites diagnoses
Thin blood smears
Name 3 protozoan parasites that cause issues in pregnancies
Trichomonas vaginalis
Toxoplasma gondii
Plasmodium spp.
Plasmodium causes what disease
Malaria
Who are the intermediate hosts/vectors for plasmodium spp.
Mosquitoes
What is the most common symptom of cryptosporidiosis
Watery diarrhea
Is there a drug treatment for cryptosporidium
Nope :(
Name an obligate intracellular protozoan
Cryptosporidium
What protozoan infects the intestinal epithelial cells of the host
Cryptosporidiium
What is the most prevalent mode of transmission of cryptosporidium
Water
Name one species of cryptosporidium
Cryptosporidium parvum
Autoinfection can be attributed to what protozoan parasite
Cryptosporidium parvum
Name 5 ways of transmission of Cryptosporidium parvum
Person-person
Autoinfection
Zoonotic
Foodborne
Water borne
What are important reservoir hosts for cryptosporidium parvum
Cattle
Name one coccidian protozoan parasite
Cyclospora cayetanensis
What does cyclospora cayetanensis cause
Cyclosporiasis
What is the infectious dose for cyclosporiasis
A low one
What is the incubation period for cyclosporiasis
About one week
Name the parasite:
Low infectious dose
Person-person and zoonotic transmission unlikely
Cyclospora cayetanensis
Majority of cases of cyclosporiasis in the US are transmitted how
Food borne
Cyclosporiasis can be attributed to what parasite
Cyclospora cayetanensis
What is the technical name for pinworm
Enterobius vermicularis
What is the common name for enterobius vermicularis
Pinworm
How do we diagnose pinworm
Scotch tape test on the butt
What is the technical name for roundworm
Trichinella spp.
What is the common name for Trichinella spp.
Roundworm
How is trichinella transmitted
Ingestion of larvae
What parasite’s larvae can work its way into your muscles
Trichinella spp.
Trichinosis is caused by what parasite
Trichinella
Trichinella causes what dieases
Trichinosis
What is the technical name for a broad fish tapeworm
Diphyllobothrium spp.
What is the common name for Diphyllobothrium spp.
Broad fish tapeworm
Where does diphyllobothrium prefer to live
In fish
How long does the Diphyllobothrium tapeworm get
10m long
What parasite can cause pernicious anemia
Diphyllobothrium spp.
aka broad fish tapeworm
What is a Taenia parasite
A large tapeworm
The adult stages of a Taenia parasite is found only in what species
Humans
What speicies of Taenia parasite can cause brain issues
Taenia solium
What is the name of the neural issues caused by Taenia spp.
Neurocysticercosis
Are Taenia spp. rare or common in Canada
Rare
What is the common name for Schistosoma spp.
Blood flukes
What is the technical name for blood flukes
Schistosoma spp.
What insect are the major intermediate hosts with Schistosoma spp.
Snails
What does Schistosoma spp attack
Liver and lymph nodes
What is special about the transmission of Schistosoma spp.
It can penetrate the skin without need for a vetor
What does Trichinosis affect
Heart
Central nervous system
Do younger or older cats shed more Toxoplasma gondii oocysts
Younger
Humans are the intermediate hosts for what parasite
Taenia solium
Where are trichinella spp. larvae encysted
Striated muscle
