Avian Viruses

Question 1

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

Answer 1

Infectious Laryngotracheitis

herps

Question 2

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

Answer 2

Mareks Disease

herps

Question 3

psittacines, diarrhea, bright yellow feces

Answer 3

pachecos disease

herpes

Question 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.

Answer 4

Fowl Pox

poxviridae

Question 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

Answer 5

Infectious Brochitis Virus

coronaviridae

Question 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.

Answer 6

Newcastle (paramyxovirus serotype 1)

Paramyxoviridae

Question 7

enlarged bursa fabricus, necrotic lymphoid follicles

Answer 7

Infectious bursal disease virus

birnaviridae

Question 8

anorexia, lethargy, anemia, hemorrhage

Answer 8

Chicken Infectious Anemia

circoviridae

Question 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.

Answer 9

Psittacine beak and feather disease virus

circoviridae

Question 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.

Answer 10

Budgerigar-Fledgling Dz

polyomaviridae