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41 Cards in this Set
- Front
- Back
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What is the vector for Plasmodium?
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Anopheles mosquitoes
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Which Plasmodium is the deadliest?
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P. falciparum
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Where is P. vivax not found?
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West Africa
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Which Plasmodium don't have a latent form in liver? (2)
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P. falciparum, P. malariae
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Which Plasmodium have a latent form in the liver? (2)
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P. vivax, P. ovale
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What is the vector for Babesia?
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Ixodes tick
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Which Plasmodium has "banana-shaped" gametocytes, applique' forms, dual infected cells, and dual chromatin dots?
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P. falciparum
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Which Plasmodium has "amoeboid" trophozoites, Schuffner's granules, and 12-20 merozoites per schizont?
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P. vivax
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Which Plasmodium has heavy, blocky trophozoites, "band" forms, 8-12 merozoites per schizont, heavy malarial pigment, and "rosette" forms?
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P. malaria
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Which Plasmodium has oval RBC containing trophozoites, prominent Schuffner's granules, and 6-14 merozoites per schizont?
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P. ovale
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What organism has small, pleomorphic rings (<20% diameter of RBC), "Maltese Cross" forms, and many ring forms.
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Babesia
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What is the vector for Trypanosoma brucei?
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Tsetse fly (Glossina spp.)
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What is the geographic distribution of Trypanosoma brucei gambiense? Trypanosoma brucei rhodesiense?
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Trypanosoma brucei gambiense: West and Central Africa
Trypanosoma brucei rhodesiense: East and Southeast Africa |
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What organism has this morphology? Extracellular flagellates found in blood, marrow, and node aspirates?
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Trypanosoma
NOTE: T. brucei has dividing forms while T. cruzi doesn't. T. cruzi has prominent kinetoplast. |
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What is the vector for Trypanosoma cruzi?
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Reduviid bug ("kissing bug")
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Vector for Leishmania?
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Sandfly
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How is Toxoplasma transmitted?
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Cat feces, undercooked meat
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What is the vector for Onchocerca volvulus?
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Black fly
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What is the vector for Loa Loa?
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Horse fly or Deer fly
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Where do Onchocerca volvulus live in the human?
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Subcutaneous nodules
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Where do Loa Loa live in the human?
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Cornea and subcutaneous tissue
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What filaria is this?
Sheathed, nuclei stop short of end of tail. |
Wuchereria bancrofti
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What filaria is this?
Sheathed, two small nuclei in tail. |
Brugia malayi
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What filaria is this?
Unsheathed, from skin, not blood. No nuclei in tail. |
Onchocerca volvulus
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What filaria is this?
Sheathed, nuclei to continue to end of tail. |
Loa loa
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What is another name for Enterobious vermicularis?
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pinworm
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What is another name for Tricuris triciuria?
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whipworm
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What type of worm is Ancylostoma duodenale and what is its geographic distribution?
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Ancylostoma duodenale:
Hookworm Africa, China, Japan, India |
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What type of worm is Necator americanus and what is its geographic distribution?
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Necator americanus:
Hookworm Worldwide |
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How is hookworm transmitted?
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Larvae penetrate skin, then migrate to lungs and are swallowed. Mature in the intestines and you poop out their eggs.
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Which is the largest and most prevalent of the intestinal worms?
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Ascaris lumbricoides
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How is Strongyloides stercoralis transmitted?
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Larvae penetrate skin, then migrate to lungs and are swallowed. Mature in the gut and lays eggs. Some penetrate gut wall, make it back to the lungs and get swallowed.
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What is the geographic distribution of Schistosoma mansoni?
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Schistosoma mansoni:
Africa Middle East South America Caribbean |
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What is the geographic distribution of Schistosoma japonicum and mekongi?
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Schistosoma japonicum and mekongi:
SE Asia China Philippines |
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What is the geographic distribution of Schistosoma haematobium?
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Schistosoma haematobium:
Africa Middle East |
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All Schistosoma must live in what animal?
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Snails
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Which Schistosoma infect the GI tract? Bladder?
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GI Tract: S. mansoni, japonicum, mekongi
Bladder: S. hematobium |
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Describe the eggs of the Schistosoma:
1. S. mansoni 2. S. hematobium 3. S. japonicum |
1. S. mansoni: prominent lateral spine
2. S. hematobium: terminal spine 3. S. japonicum: small or absent lateral spine |
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All Schistosoma must live in what animal?
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Snails
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Which Schistosoma infect the GI tract? Bladder?
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GI Tract: S. mansoni, japonicum, mekongi
Bladder: S. hematobium |
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Describe the eggs of the Schistosoma:
1. S. mansoni 2. S. hematobium 3. S. japonicum |
1. S. mansoni: prominent lateral spine
2. S. hematobium: terminal spine 3. S. japonicum: small or absent lateral spine |
