10 - Theileria spp. Flashcards Preview

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Flashcards in 10 - Theileria spp. Deck (22):
1

(The piroplasms)

1-2. what two species?

1. babesia

2. theileria

2

(Piroplasms)

1. apicomplexans

2. parasites of what (body part)

3. pigment not formed from what?

4. what are usually the definitive host?

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2. blood cell

3. host hemoglobin

4. ticks

3

(Significance)

1. babesia caused  what?

2. theileria caused what?

1. texas cattle fever

2. east coast fever

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4

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5

(Babesia)

1. what is the host?

2. what are the definitive hosts?

 

1. all domestic (intermediate host)

2. hard ticks (ixolid) (definitive host - vector)

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6

1. do these have exoerythrocytic schizogony?

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no - everything takes place in RBC

7

(Babesia)

(Ticks)

1. ticks grow houw?

2. whats the cycle?

 

(point of pic is that entire developmental cycle is on one host)

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8

What is unique about this tick?

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 it undergoes transovarian transmission (vertical)

9

(Babesia reproducation)

(transovarial)

1. vertical transmission - uses how many ticks?

(Stage to stage)

2. lateral transmission - uses how many ticks?

1. one

2. 2 and 3

10

what we're doing here is taking that coccidian life cycle and applying it to a two host system

1. remain in cells of what?

2. enter what in vertebrae?

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11

(Babesia spp.)

(Pathogenesis)

1. how pathogenic?

more in young or old?

2. what efect on the body?

3. similar to what in humans?

1. highly

old

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12

1. this results in what?

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1. severe hypotension in terminal stages of acute Babesia bovis infection

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13

(Babesia spp.)

(Immunity)

1. resistance, but only for what?

2. how long are animals that recover infected?

3. what is resistance to reinfection due to an ongoing low level infection is referred to as what?

4. may show signs of disease when stressed

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14

(Babesia microti)

1. found in a variety of what?

2. transmistted by what?

3. reported in humans?

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15

1. what is different about this?

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1. the dog ingests the tick

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16

REFER TO A TEACHING HOSPITAL 

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17

(Theileria spp.)

1. occur in what?

2. hosts?

3. definitive hosts?

(Location)

4. occur where?

5. they have small, round, ovoid, irregular or bacilliform merozoites

4. rbc's or lymphocytes

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18

(Theileria spp.)

(Life cycle)

(vertebrate host)

1. sporozoites enter lymphocytes and begin what?

2. number of schizogenous generations?

3. eventually merozoites enter what?

4. ingested by what?

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19

(Theileria spp)

(life cycle)

(invertebrate host)

1. erythrocytic merozoites develop into what?

2. zygote, become motile and end up in what?

3. just prior to tick feeding there is a what?

4. is there transovarian transmssion

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20

(Theilleria)

 

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21

(Theileria parva)

1. etiological agent of what?

2. occurs in what cells?

3. transmitted by what?

4. 

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22

(Cytauxzoon felis)

1. relatively new erythrocyteic piroplasm

2. disease of what?

2. domestic cats

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