Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
41 Cards in this Set
- Front
- Back
|
What is the invasive agent of toxoplasma?
|
sporozoites
|
|
|
what are the two ways to get toxoplasma?
|
oocyst- cats
troph- eating lamb |
|
|
what happens with toxoplasma infection in susceptible peoples?
|
cysts in muscle and brain tissue
chorioretinitis |
|
|
what are the signs of congenital toxoplasmosis?
|
hydrocephalus
mental retardation cerebral calcification chorioretinitis |
|
|
what trimester is the worst to get toxoplasma?
|
1st trimester
|
|
|
What type of cat most commonly has toxoplasma?
|
feral cats
|
|
|
what is the diagnostic stage of toxoplasma?
|
tachyzoite and bradyzoite
ELISA serum |
|
|
What is the vector for African trypansomiasis?
|
tetese fly
|
|
|
What is important about African trypansomiasis and its glycoproteins?
|
this bug will often switch its surface antigens and thus evade the immune system
|
|
|
what happens at the site of innoculation with African trypansomiasis?
|
big chancre sore
|
|
|
What are the classical manifestations of African trypansomiasis?
|
lymphadenitis
fever somnolences mental dullness tremors of tongue paralysis |
|
|
where is African trypansomiasis located?
|
central and west africa
in HUMID forests** |
|
|
what are the reservoirs for African trypansomiasis?
|
human and pig
|
|
|
what is the diagnostic stage of African trypansomiasis?
|
trypomastigote in blood (the flat worm like parasite stage)
|
|
|
What is the acute form of sleeping sickness?
|
trypanosoma rhodesiense
|
|
|
what are the signs of trypanosoma rhodesiense ?
|
sore/chancer
fever lymphadenitis parasetemia |
|
|
How fast does trypanosoma rhodesiense kill?
|
quickly before the sleepiness occurs
|
|
|
where is trypanosoma rhodesiense located?
|
central and east africa
dry savanna woodlands |
|
|
what is the vector for trypanosoma rhodesiense ?
|
tsetse flies
|
|
|
What is tyrpanosoma cruzi?
|
chagas disease
|
|
|
Where is tyrpanosoma cruzi common?
|
poor latin america
|
|
|
How do you get infected with tyrpanosoma cruzi?
|
kissing bug bites you, then poops the infective stage into the wound
|
|
|
what stage of tyrpanosoma cruzi is in the blood?
|
trypomastigote
|
|
|
what stage of tyrpanosoma cruzi is in the tissues?
|
amastigote
|
|
|
what is the acute phase of tyrpanosoma cruzi infection?
|
fever, fatigue, myalgia, large spleen, swollen glands
Romana's sign- swelling of eyelid trypanosomes in blood |
|
|
What are the chronic complications of tyrpanosoma cruzi?
|
cardiac!!
failure, arrest, ruputre, and cardiomyopathy |
|
|
How does tyrpanosoma cruzi affect the GI nervous system?
|
this destroys the nervous tissue in the GI, causing megacolon and megaesophagus
|
|
|
how is tyrpanosoma cruzi transmitted?
|
arboborne (bugs), sexual, transfusion, transplacental
|
|
|
What is the infective stage of leishmania?
|
promastigote
|
|
|
What is the intracelular form of leishmaniasis?
|
amastigote
|
|
|
What bug causes leishmania?
|
sand fly
|
|
|
What are the signs of leishmaniasis
|
cutaneous ulcers develp at bite site
these ulcers are primary signs |
|
|
What cell does leishmaniasis infect?
|
macrophages
|
|
|
What does Leishmania braziliensis cause?
|
this causes nasty ulcers and cartilage destruction
|
|
|
can you have recurrence with Leishmania braziliensis?
|
yes
|
|
|
does Leishmania braziliensis heal on its own?
|
yes it does
|
|
|
what causes mucocutaneous leishmania?
|
Leishmania braziliensis
|
|
|
What happens with recurrent Leishmania braziliensis?
|
advanced scarring
|
|
|
what are the signs of Leishmania donovani?
|
this attacks the internal organs
hepatosplenomegaly fever |
|
|
What is Post Kala-Azar?
|
this is recurrent Leishmania braziliensis due to Inadequate treatment
|
|
|
what is the treatment for Leishmaniasis?
|
stibogluconate sodium
|
