Lecture 3 Flashcards
pediculosis - what 2 types
biting (mallophaga) and sucking (anaplura -
hematopinus, linognathus)
season most associated with pediculosis
winter
sequelae to lice
hairballs
treatment to lice
topicals like evermectin
acarasis
psoroptic, chorioptic, demdectic, sarcoptic
psoroptic mange
cattle and goats with severe pruritis; REPORTABLE
Chorioptic mange
reportable only in some states
SARCOPTES
rare, can live off the host and is zoonotic
demodex
goats and cattle; reportable in some states
clinical signs of demodex
pimple, nodular lesions
stephanofilariasis
filarial dermatitis
what transmits stephanofilaraisis?
horn fly
where do stephanofilaris lesions occur
ventral midline
primary photosensitization
circulating photodynamic agents activated by UV light - emits energy and damages the tissues
secondary photosensitization
toxins, bacteria, viruses, damages the liver - eg phylloerythrin (degraded chlorophyl)
st. john’s wort can cuase what
primary photosization
drugs that cause photosensitization
sulfas, tetracycline, phenothiazine, thiazides
treatment of photosensitization
eliminate source of photo agent, avoid sunlight, antibiotics to treat the secondary pyoderma
wound management
symptomatic for liver disease
contagious ecthyma
orf “sore mouth”
orf is what kind of virus
pox virus
risk factors of orf
dry seasons ,access to wild ruminants, surgical procedures, FPT
transmission of orf
contact and stabile in the environment (can live in crusts for 12 years)
significance of orf
mouth sores - cannot nurse; fly strike, secondary infections
clinical signs of orf
ulcers nd scabs at the mucocutaneous junctions; with the malignant form, it can spread systemically; very painful but spontaneous recovery in 2-3 weeks
