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Terrestrial wildlife
infectious disease exam 3
Question | Answer |
---|---|
Virus family of Hemorrhagic disease and Bluetongue disease | Reoviridae. clinical signs indistinguishable. cytoplasmic replication. |
Hemorrhagic disease and Bluetongue disease transmission:vector | Culicoides sonorensis and Culicolides insignis. Transmitted July through November |
Hemorrhagic disease and Bluetongue disease vaccine | available for farm animals. Can't vaccinate wildlife. |
Hemorrhagic disease and Bluetongue clinical signs | damage to small blood vessels:fluid loss,hemorrhage,tissue damage.manifestation:severe, hemorrhagic fever. sudden death-chronic disease. reddening of periocular skin and nostrils. neurological signs. found near water. slughing of hoof/antlers |
Hemorrhagic disease and Bluetongue disease diagnosis | perechial hemorrhages, pulmonary edema, swelling of tongue, mucosal surfaces, head, neck. pericardial effusion, splenomegaly, hypermia or hemorrhage of forestomach. |
Chronic wasting disease- Transmissible spongiform encephalopathy | Progressive loss of condition. prions detected in LN. prion material detected in urine. horizontal transmission through infected placenta |
Rabies: prodromal period (1-2 days) | early symptoms and signs of an illness that precede the characteristic manifestations of the acute, fully developed illness |
Rabies: acute neurologic period (1-10 days) | typical rabies signs. |
Canine distemper virus transmission | direct contact, aerosol droplets. virus shed in all excretions and secretions. replication in LN tissue w/ respiratory tract muscosa. viremia, infection of epithelial tissue. CNS infection. |
Canine distemper virus clinical signs | respiratory distress, fever, anorexia, serous nasal discharge, mucopurulent ocular discharge, hyperkeratosis of sasal planum and footpads. |
Canine distemper CNS signs | localized twitching, paresis/paralysis beginning in the hind limb. convulsions, salivation and chewing movement of the jaws, paddling movement of the legs, urination and defecation. |
EEE tansmission: culiseta melanura | maintains EEE in bird mosquito cycle |
EEE transmission: coquillitidea perterbans | spreads EEE virus from endemic foci to new areas |
EEE transmission: aedes vexans and A.canadensis | transmit virus to horses and people. bridge vector |
EEE clinical signs | do not usually develop in indigenous birds. Clinical signs in nonindigenous birds |
EEE vaccine | Killed virus. |
West Nile clinical signs | Depression, ataxia, weight loss, torticollis, difficulty flying, death |
West Nile virus alligator transmission | fights, feeding infected meat (horse), feeding opportunistically on infected wild birds. |
West Nile control | Mostquito control. Vaccine in zoo (equine vaccine), efficacy not known. |