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35 Cards in this Set

  • Front
  • Back
Plasmodium vivax
malaria w/ hypnozoites and schuffner's dots
Plasmodium ovale
malaria w/ hypnozoites and schuffner's dots
Plasmodium malariae
malaria w/ no hypnozoites but may persist in bloodstream
Plasmodium falciparum
- malaia that invades red cells of all ages
- sickle-shaped gametocyte
- mild illness
- may be mistake for malaria
- from white-footed mouse to tick to you
Toxoplasma gondii
- from cat or undercooked meat
- can survive in M's by preventing lysosome fusion
- accute, conginital and AIDS forms
- cattle pathogen
- mild diarrhea in normal, severe if immunosuppressed
- No effective treatment
- cytst are choline resistant
- like Cryptosporidium but bigger
- No animal reservoir
- Outbreaks from Guatemalan raspberries
- Treatment - Bactrim
Trypanasomatids rhodesiense
- East Africa - T and P
- wild animal reservoir
– Glossina morsitans group, lives in savanna
– accute - months to develop
Trypanasomatids gambiense
- West Africa - T and P
- human reservoir
– Glossina palpalis group, lives by rivers
– chronic - years to develop
Trypanosoma cruzi
- Chagas’ Disease - A and E
- accute and chronic
- A and P
- visceral and cuaneous forms
- mainly in poorly nourished children
Trichomonas vaginalis
- cysteine proteases, adhesins, hydrogenosome, Metronidazole
- most common STD
- anaerobic
Entamoeba histolytica
- luminal and hepatic forms
Giardia lamblia
- Most common GI parasite, esp children ->bad development
- cysts choline resistant
- Trophozoites have 4 pairs of flagella, 2 nuclei - cysts have 4
- Human breast milk kills
- Musca domesticus (faculative) and Bed bugs (obligatory)
– bird ectoparasites
– live in beds and feel painlessly at night
warmblooded fleas
mites and ticks
- soft ticks
– nocturnal feeders
– bird ticks
- hard ticks
- complicated life style
Sarcoptes scabei
- mite
- scabies in humans and "mange" in animals
Enterobius vermicularis
Ascaris lumbricoides
roundworm - ingested and hatch in duodenum, penetrate, go to luungs -> pneumonitis w/ eosinophilia
Necator americanus
- Hookworm
- live in SI w/ teeth to get blood for nutreints and O2
Ancylostoma duodenale
- Hookworm
- live in SI w/ teeth to get blood for nutreints and O2
Strongyloides stercoralis
- from skin penetration
- like hookworm, but eggs hatch in intestine and motile larvae passed in feces
- auto-reinfection
- bad if immunosuppressed so screen transplants
Cutaneous larva migrans
- hookworm larvae of dog enter's human skin
- produce migrating inflam rxn
Visceral larva migrans
- when kids ingest soil w/ dog or cat roundworm, Toxocara canis or cati
- cant mature in humans, so it migrates to the liver
- Symptoms rare - sometimes migrate to eye and cause retinal lesions, or to the brain and cause seizures
blood and tissue nematodes
Wuchereria bancrofti
elephantiasis or Lymphatic filariasis
Onchocerca volvulus
make microfilariae that migrate in skin -> intense itching, even blindness
Taenia saginata
tapeworm from cow
Taenia solium
tapeworm from pig
flukes - flatworms
- bloodfulke that causes intestinal or urinary infection
- has to infect a snail