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18889329
Coccidia and Coccidiosis
Description
Protozoa II - Coccidia and Coccidiosis
No tags specified
veterinary medicine
parasitology
Quiz by
Caitlin Wringe
, updated more than 1 year ago
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Created by
Caitlin Wringe
over 5 years ago
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Resource summary
Question 1
Question
Coccidia are obligate intracellular parasites.
Answer
True
False
Question 2
Question
Label the life cycle of coccidia
Image:
Screen+Shot+2019 08 12+At+1.24.52+Pm (binary/octet-stream)
Answer
Sporogony/Transmission
Infection
Merogony 1
Merogony 2 (Multiplication)
Merogony 3/4
Gamogony/Sexual reproduction
Sporulated oocyt ingested
Sporozoites invade intestinal cells
Trophozoites grow to form meront
Merogony stage produce merozoites
Merozoites burst from cell and invade
Second generation of meronts produced
Macrogametocyte/Microgametocyte formed
Mature macrogametes/microgametes
Fertilisation forms zygote then oocyte
Release of oocyte in faeces
Oocytes sporulate to form sporozoites
Question 3
Question
What is the infectious form of coccidia?
Answer
Oocyte
Sporozoite
Trophozoite
Merozoite
Question 4
Question
Which two structures are involved in fertilisation to form a zygote?
Answer
Microgamete and Macrogamete
Microgametocyte and Macrogametocyte
Merozoites and Trophozoites
There is no sexual reproduction involved in the coccidia lifecycle. Only asexual reproduction occurs.
Question 5
Question
What is this morphological stage called?
Image:
Screen+Shot+2019 08 12+At+2.13.33+Pm (binary/octet-stream)
Answer
Zoite
Sporozoite
Merozoite
Oocyte
Question 6
Question
What is this structure called?
Image:
Figure16 1 (binary/octet-stream)
Answer
Sporulated oocyst
Oocyst
Sporozoite
Zoite
Question 7
Question
What is this morphological structure called?
Image:
Screen+Shot+2019 08 12+At+2.20.29+Pm (binary/octet-stream)
Answer
Unsporulated oocyst
Sporozoite
Zoite
Merozoite
Question 8
Question
Coccidia is prevalent in [blank_start]crowded[blank_end] conditions.
Answer
crowded
Question 9
Question
Transmission is via [blank_start]faecal-oral route[blank_end], contaminated [blank_start]feed[blank_end] and [blank_start]water[blank_end].
Answer
faecal-oral route
feed
water
Question 10
Question
Coccidiosis is often asymptomatic.
Answer
True
False
Question 11
Question
Which of the following is associated with Coccidiosis?
Answer
Crypt hyperplasia
Destruction of epithelial cells
Intestinal lesions
Crypt infection
Kidney lesions
Question 12
Question
What are some clinical signs of a Coccidiosis infestation?
Answer
Diarrhoea
Blood in faeces
Poor weight gain/emaciation
Fever
Vomiting
Question 13
Question
Which three diagnosis tests can be used to confirm a Coccidia infection?
Answer
Faecal flotation, clinical signs, histopathology
Faecal flotation, direct smear, PCR
Histopathology, direct smear, ELISA
Histopathology, ELISA, direct smear
Question 14
Question
What is the best approach to treatment of Coccidiosis?
Answer
Supportive treatment and control of secondary infections
Febantel
Fluroquinalones
Tetracyclines
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