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General Parasitology > Protozoa 4 > Flashcards

Protozoa 4 Flashcards

1
Q

what is the life cycle of malaria?

A

indirect
mosquito

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2
Q

describe the life cycle of malaria

A

mosquito spreads sporozoites
sporozoites to liver to red blood cells
mosquito ingests gametes

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3
Q

what is the pathogenesis of malaria?

A

infected red blood cells stick to endothelium, avoid being destroyed by spleen

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4
Q

what are the genera of avian malaria?

A

Leucocytozoon
Haemoproteus
Plasmodium

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5
Q

what is the vector of Leucocytozoon?

A

simulium: black fly

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6
Q

what is the pathogenicity of Leucocytozoon?

A

often fatal in young

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7
Q

what are the vectors of Haemoproteus?

A

Culicoides “no-see-ums”
Hippoboscid fly
Chrysops deer fly

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8
Q

what are the vectors of Plasmodium?

A

culex, aedes, other mosquitos

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9
Q

what is the pathogenicity of Plasmodium?

A

virulent

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10
Q

what is the definitive host of Plasmodium?

A

chickens

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11
Q

what is the life cycle of Babesia?

A

indirect
tick vector
sporozoites injected into bloodstream
sexual in tick
asexual in intermediate host

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12
Q

which Babesia infect cattle?

A

Babesia bigemina
B. bovis
B. divergens

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13
Q

which Babesia infect dogs?

A

Babesia canis
B. gibsoni

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14
Q

what does Babesia caballi infect?

A

horses

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15
Q

what does Babesia microti infect?

A

human
rodents

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16
Q

what are the clinical signs of Babesia (piroplasmosis)?

A

destruction erythrocytes and release of toxic parasite products: fever
hemolytic anemia
hemoglobinuria
jaundice
death

17
Q

how is piroplasmosis treated?

A

imidocarb

18
Q

who does Leukocytozoon infect?

A

ducks
geese
chickens
turkeys
hawks

19
Q

who does Haemoproteus infect?

A

pigeons
doves
quails
turkeys
ducks
geese
swans

20
Q

who does plasmodium infect?

A

chickens

21
Q

what species of avian malaria infect chickens in plasmodium?

A

Plasmodium gallinaceum
Plasmodium circumfexum

22
Q

describe the life cycle of Haemoproteus spp

A

gametocytes in red blood cells ingested by fly
oocysts formed in insect
sporozoites injected into blood vessels
asexual development in endothelial cells and then into gametocytes

23
Q

which hosts can babesia infect?

A

cattle
dog
horse
human
rodent

24
Q

how is babesia/piroplasmosis treated?

A

imidocarb IM

25
Q

what is canine piroplasmosis like?

A

typically mild in US

26
Q

in whom does the sexual phase of the life cycle of Theilaria parva take place?

A

tick

General Parasitology (17 decks)

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