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Parasitology 2
UNR
95
Biology
Undergraduate 3
03/04/2011

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Term
What phylum has apical complex structure involved in penetrating a host's cell. unicellular, spore-forming, and exclusively parasites
Definition
Apicomplexa
Term
process of asexual reproduction in vertebrate host
Definition
skyzogony
Term
sexual reproduction where zygote is completed, and will determine the definitive host
Definition
Gamatogony
Term
asexual reproduction outside vertebrate host
Definition
sporogony
Term
general disease in agriculture animals, occurs in specific parts of digestive system
Highly specific
Definition
Coccidiosis
Term
found in digestive system of chickens
causes coccidiosis
Definition
Emieria tenella
emieria necatrix
Term
What cellular type of parasite is this?
Definition
intercellular
Term
What is the life cycle of emeria?
Definition
Chicken ingests oocyst
gets into digestive epithelium
turns to tropozoite
Starts schyzogony
Tropozite does nuclear division
Then does cytoplasmic division
then produces merozoite
Term
nuclear division and cytoplasmic division together are called what in Emeria?
Definition
segment
Term
How many shizogonyes does Emria undergo in chicken GI cells?
Definition
genetically predetermined. 1-4 usually
Term
what stage infects the GI cells in Emieria?
Definition
merozoite
Term
when Emieria cells undergo gametogony in GI cells, what are the zygotes called
Definition
microgamates
macrogamates
Term
How does sporogony happen with emieria?
Definition
zygote forms cyst around it & passed throu host fecal matter, zygote forms oocyst
Term
Symptoms of Eimeria?
Definition
diarrhea
animal goes off feed
Term
way to prevent Eimeria oocysts?
Definition
troughs for animal feed
Term
term for general disease chickens can get?
Definition
sick chick syndrome
Term
term for building up immunity as long as in constant contact with disease
Definition
premunition
Term
Emeria that never causes disease in chickens?
Definition
Emeria Mitis
Term
What causes toxoplasmosis in humans?
Definition
Toxoplasma gondi
Term
Definitive host of toxoplasmosis gondhi
Definition
domestic & wild cats
Term
Toxoplasma gondi mostly affects
Definition
unborn children
elderly
chemo or AIDS patients
Term
What stages of Toxoplasma gondi occur in definitive host?
Definition
Ingest oocyst, then skyzogomy, gamatogony & sporogony
Term
What stage of Toxoplasma gondi goes into the cell?
Definition
sporozoites
Term
when Toxoplasma gondi oocysts mature and reproduce, what do they release?
Definition
tachyzoites
Term
With Toxoplasma gondi, the process of reproducing in the cell and producing tachyzoites is called what?
Definition
called proliferative stage
Term
As Tachyzoites invade cells in response to immune system acting up Then divide slowly, this is called what?
Definition
cystic phase
Term
can immunity be obtained from Toxoplasma gondi?
Definition
yes, premunition
Term
In Toxoplasma gondi,each bradyzoite acts like a sporozitie & initiates what?
Definition
schygogony
Term
How is Toxoplasma gondi transmitted?
Definition
ingesting/inhaling oocysts
eating bradyzoites in steaks or
inhaling oocysts in cat liter
unpasturized milk can hold brady & tachyzoites
blood & organ transplants
interuterine transmission
Term
How is toxoplasmosis gondi transmitted via intrauterine?
Definition
1st case must be while prego
most likely to transmit in 3rd trimester, but least serious
Term
In severe cases of toxoplasmosis gondi being transmitted via intrauterine, what happens to the fetus?
Definition
Natural abortion
Sill birth
Hydrocephilis (fluid in brain)
Micrencephalade (small brain)
Cerebral calcification
Mental retardation
Blindness after birth (most common)
Term
process which mother gets toxoplasmosis gondi while prego?
Definition
congentital toxoplasmosis
Term
What happens when a child contracts toxoplasmosis gondi?
Definition
resembles a common cold
fever, lymph node swelling
After 2 weeks symptoms disappear
Term
What stage of Toxoplasmosis gondi occurs in cats?
what stage in the outside env.?
Definition
Schizogony and gametogony occurs in cats
Sproogony occurs in outside environment
Term
Where does asexual reproduction of toxoplasmosis gondi occur?
Definition
in humans and other animals
Term
Where does development of toxoplasmosis gondi first occur in a body?
Definition
small intestine
Term
rapid asexual reproduction. Tachyzoites produced and released to infect new cells
Then ___ stage. Slow asexual reproduction where bradyzoites are retained within cells known as zoitocysts for an extended and indefinite time period
Definition
proliferative stage
cystic stage
Term
Reservoir host of malaria?
Definition
none
Term
Where is malaria found?
Definition
tropics & subtropics
Term
symptoms of malaria
Definition
• Whole body shakes
• Extremely cold
• Searing headache
• Then body burns like intense fever (4 hrs)
• Fever occurs about 3x
• 12 hours symptoms
• Very weak
• Vomit, lose bowels
tired for months after
Term
What type of disease did you need duffy factor to get? (slaves were resistant to this disease)
Definition
Tertian Malaria
Term
what version of malaria is milder?
Definition
Tertian Malaria
Term
what version of malaria do Africans usually get?
Definition
Malignang Tertian Malaria
Term
what disease helped determine the revolutionary war?
Definition
Malignang Tertian Malaria
Term
What is going on when you get the chills with Malaria?
Definition
when merozoite is in the blood stream
Term
what happens in the body when u get fever & sweats from Malaria?
Definition
Body loses sight of merozoite, so resets temp to 98.6 (step 2)
Term
Why is someone tired from Malaria?
Definition
Malaria feeds on RBC
Term
what does malaria convert heme to?
Definition
hemozoin
Term
What part of the diet is lacking in areas riddled with Malaria?
Definition
protien
Term
What happens to fetuses in pregos that contract malaria?
Definition
Brain damage, liver, kidney damage
Term
What are some symptoms that malaria falciparum poses?
Definition
• Convulsions
• Abortion
• Coma
• Kidney problems
• Hypoglycemia
• Edema
Term
What two things cause the most destruction with malaria?
Definition
loss of Oxygen carrying capacity
inflamation
Term
Which version of malaria has a higher death rate?
Definition
falciperium
Term
What are some treatments for Malaria?
Definition
Quinine
Chloroquine (resistance developed to it now)Stopped malaria from converting heme to hemozoin
Artemisinin (chinese drug, derived from wormwood
Term
What are 3 possible forms of Malaria vaccines?
Definition
• Pre erethrytic vaccine
• Blood stage vaccine
• Transmission blocking vaccine
Term
what is the extracellular form of malaria?
Definition
sporozoite
Term
what vaccine would keep mosquito from getting malaria?
Definition
Gaminocyte vaccine
Term
what form of malaria is mostly a parasite of birds?
Definition
plasmodium
Term
which Malaria is the worst of the two?
Definition
malignant tertian malaria
Term
Two types of malaria
Definition
Tertian Malaria

Malignant tertian Malaria
Term
Where does sczygonogy of malaria occur?
Definition
in humans
Term
what parts of the life cycle occur in mesquito host?
Definition
gametogony sporogony
Term
Malaria
occurs in the liver
before the disease enters red blood cells
asymptomatic
Definition
pre erythritic schyzogony
Term
Malaria stage:
occurs in red blood cells
during this stage symptoms occur
NOT SELF LIMITING
can occur an indefinite number of times
Definition
erythrocytic Schizogony
Term
Malaria Stage:
occurs in the liver
before preerythrocytic Schizogony or after erythrocytic Schizogony
Definition
exoerethrytic schyzogony
Term
How is a malaria sporozoite transmitted?
Then where does it travel?
Then what does it become?
Definition
injected by anopheles
to the liver
Tropozoite
Term
How does Malaria get into the blood?
At this stage, what begins?
Definition
the liver cells burst after being infected, then traveling merozoites enter blood.
erethrytic schyzogony
Term
how does gametogony occur with Malaria?
Definition
the gametocytes remains in the rbc until the rbc is either picked up by anopheles or the rbc dies
if taken up. gamenocytes burst out of RBC to search for macrogaminocyte
Term
name for malaria zygote?
Definition
ookinete
Term
what does an ookinete do?
Definition
develops into an oocyst and nucleus divides to form sporoblast

o sporoblast bursts and releases sporozoites which move to the salivary gland where they are injected back into a human host
Term
What two species cause tertian Malaria?
Definition
Plasmodium vivax
plasmodium ovale
Term
What species causes Quartrin malaria?
Definition
Plasmodium malariae
Term
What species causes malignant tertian malaria?
Definition
Plasmodium falciparum (most common in the world today)
Term
3 forms of mesquito control?
Definition
• Insecticide (DDT) – harmless to humans but not produced?
• Bed Nets – best when insecticide treated
• Organic Phospates absorbed through skin
Term
What causestexas cattle fever?
Definition
Babesia bigemina
Term
What is the lone star tick?
Definition
• Boophilas enulatus
Term
What is the life cycle of a lone star tick?
Definition
Adult-->egg--> larva-->feed-->nymph-->feed-->Adult-->feed
Term
What is the lifecycle of texas cattle fever?
Definition
• Adult female tick picks up gamenocyte and it will travel to gut and fertilization occurs
• Oophinite will travel to ovary and invade eggs of ticks (transovarian transmission)
• Sporozoties will then travel to salivary glands
• When they get to animal, they infect it.
• New tick bites animal and gets gaminocytes
Term
symptoms of texas cattle fever?
Definition
severe anemia,
death
asymptomatic in youngins
Term
what causes nantucket fever in humans?
Definition
Babesia microti
Term
scientific name of deer tick
Definition
Ixodes scapularis
Term
What is unique about the deer tick?
Definition
3 host tick
1st rodent, 2nd human, 3rd host deer.
Term
what gives bambesia microti to humans?
Definition
deer tick
Term
symptoms of babesia microti
Definition
o Mild to serious fever
o Destruction of RBC’s
o Can be fatal
Term
what causes nantucket fever in humans?
Definition
babesia microti
Term
what Causes “Whirling Disease”
Definition
Myxobolus cerebralis
Term
symptoms of whirlings disease?
Definition
Swim in circles, small in size, distorted backbone, black color to them
Term
whats transmitts the whirling disease to trout?
Definition
tubefec worms
Term
what stages of whirlings disease occur in the tubefec worm? the trout?
Definition
o Shygogony and gametogony
• Sporogony occurs in the trout
Term
is a stage of whirligns disease that enters in the fish through mouth or through skin between scales.
Definition
• Triactinomyxon
Term
what is the infective stage to the fish in whirlings disease?
Definition
TAM
Term
what species gets on fish gills & suffocates them?
Definition
Ichtyyopthirius multifilis (Ich)
Term
What species causes Ich?
Definition
Ichtyopthirus multifilis
Term
what is the resorvoir host of ICh?
Definition
freshwater fish
Term
what is the resorvoir host of balantidium coli?
Definition
pigs
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