final - new material Flashcards
(158 cards)
1
Q
connective tissue nematode of horses
A
onchocerca cervicalis
2
Q
lung nematode of horses
A
dictyocaulus arnfieldi
3
Q
onchocerca cervicalis location
A
adults - ligamentum nuchae
microfilaria - dermis
4
Q
onchocerca cervicalis vector
A
flies - biting midges
5
Q
onchocerca cervicalis time and distribution
A
summer; northern latitudes
6
Q
onchocerca cervicalis pathogenesis
A
fistulous withers, dermatitis, uveitis, pruritic lesions
7
Q
when is disease associated with onchocerca cervicalis seen
A
mid-late summer to fall
8
Q
natural hosts of dictyocaulus arnfieldi
A
donkeys and horses < 3y
9
Q
dictyocaulus arnfieldi transmission
A
pasture
10
Q
dictyocaulus arnfieldi shed and infective stage
A
shed - L1
infective - L3
11
Q
dictyocaulus arnfieldi site
A
lower respiratory tract
12
Q
dictyocaulus arnfieldi pathogenesis
A
bronchitis, pneumonia, severe coughing
13
Q
dx of lungworm
A
baermann method
14
Q
coccidiosis in horses is caused by
A
eimeria leukarti
15
Q
eimeria leukarti ddx (based on morphology)
A
pollen grain
16
Q
what protozoa is immediately infective and can be acquired from cattle
A
cryptosporidium parvum
17
Q
what stage of sarcocystis neurona infects horses
A
cystic stage
18
Q
what role do horses play in the lifecycle of sarcocystis neurona
A
aberrant IH
19
Q
DH of sarcocystis neurona
A
opossum
20
Q
primary etiologic agent of equine protozoal myeloencephalitis
A
sarcocystis neurona
21
Q
3 As of equine protozoal myeloencephalitis
A
asymmetry
ataxia
atrophy
22
Q
dx of EPM
A
neurological c/s with serology on serum and CSF
23
Q
control of sarcocystis neurona
A
prevent access of opossums to horse-feeding and watering areas
24
Q
what other protozoa causes EPM
A
neospora hughesi
25
what role do horses play in the lifecycle of neospora hughesi
true IH - develop tissue cysts with bradyzoites
26
T or F: neospora hughesi can cause abortions in horses
T
27
reportable disease in horses caused by babesia caballi and theileria equi
equine piroplasmosis
28
babesia caballi site
RBC
29
thelaria equi site
WBC and RBC
30
where is babesia caballi and thelaria equi endemic
latin america
31
disease of concern for import/export
equine piroplasmosis
32
pathogenesis of equine piroplasmosis
acute hemolytic anemia
fever > 40
dark urine - hemoglobinuria
33
itchy leg mite that causes "mud fever" in horses
chorioptes equi
34
scab mite or equine body mite
psoroptes equi
35
common mange mite
sarcoptes scabei
36
follicle mite
demodex equi
37
what dz can be transmitted by ticks in horses
equine granulocytic anaplasmosis
lyme
tick paralysis
38
chewing louse of horses that affects the dorso-lateral trunk
damalinia equi
39
sucking louse of horses that affects the mane, tailhead and fetlocks
haematopinus asini
40
equine pediculosis is a winter problem, what are the risk factors
stressed
poor nutrition
long hair coats
high density of animals
41
equine pediculosis c/s
biting/rubbing at infected areas
restlessness
hair loss, skin loss
wounds can be infected
42
gasterophilus spp common name
bot flies
43
gasterophilus intestinalis location
eggs - foreliimbs, shoulders
larva - cardiac region of stomach
44
gasterophilus nasalis location
eggs - intermandibular region
larva - pylorus and prox. duodenum
45
gasterophilus haemorrhoidalis location
eggs - hair of mouth and lips
larva - rectum
46
where on the hair will you find bot eggs
tips of hair
47
stomoxys calcitrans common name
stable fly
48
IH for habronema and draschia
stable fly
49
culicoides spp common name
midge
50
pathogenesis of culicoides
hypersensitivity - queensland or sweet itch
51
tabanids common name
horse fly, deer fly, clegs
52
what diseases are tabanids transport hosts for
equine infectious anemia
anthrax
53
culex, aedes, anopheles common name
mosquitos
54
mosquitos can be vectors for
setaria, west nile virus, equine encephalitis
55
major parasite of concern in adult horses
cyathostomins and tapeworms
56
most important parasite infecting foals and weanlings
parascaris
57
hyostrongylus rubidus common name
red stomach worm of pigs
58
red stomach worm affects outdoor pigs, what is the infective stage
L3 on pasture
59
hyostrongylus pathogenesis
catarrhal gastritis, damage to parietal cells
60
ascaris suum commn name
swine roundworm
61
what kind of pigs does ascaris suum mostly affect
grower pigs
62
T or F: ascaris suum does well indoors
T
63
migration of ascaris suum
hepato-tracheal
64
ascaris suum pathogenesis
milk spot liver - migrating larvae cause hemorrhage, fibrosis and accumulation of lymphocytes in the liver
65
strongyloides ransomi / s. suis distrubtion
worldwide, warmer climates - southern US
66
parasite of nursing piglets
strongyloides ransomi/suis
67
T or F: strongyloides ransomi/suis is zoonotic
F
68
routes of infection for s. ransomi and s. suis
prenatal and transmammary
69
where does the L3 of s. ransomi/s. suis undergo hypobiosis
somatic tissues
70
s. ransomi pathogenesis
catarrhal enteritis
mostly in 2 week old piglets
71
oesophagostomum spp common name
nodular worm of large intestine
72
oesophagostomum transmission
pasture
L3 infective
73
where are oesophagostomum L4 located
nodules in large intestine
74
oesophagostomum migration
mucosal
75
oesophagostomum pathogenesis
diarrhea, weight loss, reduced weight gain, reduced litter size
76
trichuris suis common name
whipworm
77
parasite of pigs in the grower barn
trichuris suis
78
trichuris suis pathogenesis
large bowel diarrhea with mucus +/- blood
79
metastrongylus spp common name
swine lungworm
80
metastrongylus location
adults in bronchi and bronchioli
81
metastrongylus IH
earthworm
82
metastrongylus shed stage
eggs with larvae
83
high prevalence in wild boars
metastrongylus
84
metastrongylus pathogenesis
verminous bronchopneumonia in young pigs housed outdoors
85
metastrongylus dx
flotation
86
stephanurus dentatus common name
swine kidney worm
87
stephanurus dentatus distribution
southeastern and south central US
88
how are stephanurus eggs passed
in the urine
- hatch shortly and becomes infective in 1 week
89
stephanurus transmission
skin penetration
ingestion - environment or earthworm (PH)
90
stephanurus pathogenesis
hepatic damage, liver condemnation
91
control of swine kidney worm
gilts only breeding program
92
trichinella transmission
consumption of infected meat - foodborne zoonosis
93
trichinella larva location
muscle fibers
94
trichinella adult location
duodenal and jejunal mucosa
95
T or F: there is no shed stage of trichinella
T
96
sarcoptes scabei var. suis common name
hog mange mite
97
when is hog mange mite transmitted
all year round in housed pigs
98
haematopinus suis common name
hog louse
99
who should you treat when there is an infection of hog louse
all animals on premise
100
coccidiosis in pigs is caused by
cystoispora suis
101
c/s of coccidiosis in pigs
yellow-gray pasty diarrhea, no blood
102
eimeria sporulated oocyst
2 sporozoites in each of 4 sporocysts
103
isospora sporulated oocyst
4 sporozoites in each of two sporocysts
104
important disease in nursing pigs raised inside
coccidiosis
105
zoonotic disease balantidiasis is caused by
balantidium coli
106
largest protozoa that infects humans
balantidium coli
107
balantidium coli pathogenesis
moderate to severe diarrhea
108
balantidium coli dx
floatation/direct smear
109
what would be found in watery diarrhea caused by balantidium coli
trophozoites
110
pigs are a common IH for ___ and a source of infection in humans
toxoplasma gondii
111
ascaridia galli common name
large roundworm of poultry
112
ascaridia galli location
develop in intestinal mucosa
return to lumen to develop into adults
113
if you find a worm in a chicken egg, it could be
ascaridia galli
114
capillaria spp common name
threadworm of poultry
115
capillaria location
crop and esophagus
116
capillaria pathogenesis
thickening and inflammation of mucus membrane
hemorrhage and erosion of intestinal lining
reduced growth, reduced egg production, reduced fertility
117
capillaria has both direct and indirect lifecycles, what is the IH
earthworm
118
heterakis gallinarum common name
caecal worm of poultry
119
heterakis gallinarum pathogenesis
histomoniasis
120
how do turkeys get histomoniasis
eating infected chicken manure or earthworms
121
when cecal worm larvae hatch, where is histomonas released
intestinal lumen
122
syngamus trachea common name
gapeworm
123
syngamus trachea pathogenesis
gapes - birds gasp due to tracheal obstruction and inflammation
feed on blood - anemia
124
cestode of poultry
davainea proglottina
125
davainea proglottina IH
gastropods
126
davainea proglottina location and pathogenesis
small intestine
enteritis and poor production
127
cnedmidocoptes mutans common name
scaly leg
128
cnemidocoptes gallinae common name
de-pluming itch
129
cnemidocoptes pilae common name
beak rot
130
dermanyssus gallinae common name
red mite, roost mite
131
ornithonyssus sylvarum common name
northern fowl mite
132
surface mites of poultry (are/are not) zootnotic
are
133
surface mites of poultry feed on
blood
134
which poultry surface mite has a posterior anus and is found on birds at night, and in the environment during the day
dermanyssus
135
which poultry surface mite has an anterior anus is found on birds at all times but is an obligate blood feeder
ornithonyssus
136
most important ectoparasite of layers and breeding chickens in the US
ornithonyssus
137
menacanthus stramineus common name
chicken body louse
138
chicken body louse pathogenesis
itching, feather damage, skin lesions
139
cimex lectularius common name
bed bugs
140
bed bugs commonly infect
poultry breeder flocks
141
bed bug pathogenesis
excessive feather loss and irritation
lesions on the breasts and legs
142
mucosoflagellate of cecum that can spread to the liver
histomonas meleagridis
143
histomonas transmission
direct - shed in feces
indirect - nematode PH
144
what poultry bird is most affected by histomonas
turkeys
145
key c/s of histomoniasis
sulfure yellow droppings
cyanosis of comb and wattles (black head)
146
postmortem dx of histomoniasis
bulls eye lesion on liver
caseous cores in cecum
147
lifecycle of histomonas
trophozoites only
148
what birds does trichomonas mostly infect
domestic pigeons and wild doves
149
trichomonas (canker) pathogenesis
caseous necrosis of oral cavity, orbitals, brain
150
trichomonas lifecycle
direct, only trophozoites
151
transmission of trichomonas in poultry
parent bird feeding young and
infected saliva and poop
152
first lesions of trichomoniasis
small yellowish areas on oral mucosa
153
most important protozoal disease in poultry
eimeria - coccidia
154
eimeria location
intestinal tract, some liver and kidney
155
coccidiosis pathogenesis
damage to bird's intestinal lining
runny off colored droppings - blood tinged
156
cyrptosporidium pathogenesis
diarrhea, dehydration
coughing, gasping, airsacculitis, sometimes death
157
where does cryptosporidium replicate
brush border on the surface of epithelial cells
158
T or F: avian cryptospordium is infectious to people
F
