Avian Viruses Flashcards Preview

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Flashcards in Avian Viruses Deck (10):
1

fowl diptheria, dyspnea, w/ bloody mucus and head shaking

Infectious Laryngotracheitis

herps

2

Cancer of the nerves, usually seen in sciatic nerve, attacks teh T lymphocytes, assymetric paralysis, ataxia, graying of iris

Mareks Disease

herps

3

psittacines, diarrhea, bright yellow feces

pachecos disease

herpes

4

cutaneous small papules on the comb, wattles, and around the beak. Wet form: infection of the mucous membranes of the mouth, pharynx, larynx, and sometimes trachea.

Mortality for the wet form is significantly higher.

Fowl Pox

poxviridae

5

Severe respiratory disease in young chickens with high mortality. Adults there is marked decrease in egg production and soft shelled/malformed eggs are laid when laying resumes

Infectious Brochitis Virus

coronaviridae

6

There are different clinical signs based on the strains. 1) Viscerotropic velogenic, 2) neurotropic velogenic, 3) mesogenic 4) lentogenic 5) asymptomatic enteric. 1,2,3 are considered official Newcastles disease.

Newcastle (paramyxovirus serotype 1)

Paramyxoviridae

7

enlarged bursa fabricus, necrotic lymphoid follicles

Infectious bursal disease virus

birnaviridae

8

anorexia, lethargy, anemia, hemorrhage

Chicken Infectious Anemia

circoviridae

9

Most infections are mild or subclinical. Clinical signs include feather loss, abnormal pin feathers, abnormal mature feathers, and various beak abnormalaties. Disease is progressive; most birds die after feathers are malformed.

Psittacine beak and feather disease virus

circoviridae

10

Most infections are not associated with clinical disease. Usually see increased mortality amongst a variety of captive pisttacine birds. Usually die quickly with few clinical signs (crop stasis, weakness). Histo can show focal necrosis in several organs.

Budgerigar-Fledgling Dz

polyomaviridae