Avian I

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Avian I
2012-05-01 08:25:19

Avian I
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  1. What viral disease is caused by Paramyxovirus type 1 and causes clinical signs of respiratory, deformed egg production, conjunctivitis, and encephalitis?
    Exotic Newcastle Disease
  2. How is Exotic Newcastle Disease diagnosed? 3
    • Oropharyngeal swab with Real-time PCR
    • Paired serology
    • Virus isolation in chick embryo
  3. How is Exotic Newcastle Disease controlled in the US?
  4. What viral disease is caused by Orthomyxovirus (type A) has hemagglutinin subtypes H5 and H7?
    Avian Influenza
  5. What are some clinical signs associated with low path avian influenza? 5
    • Depression, respiratory
    • Respiratory exudates
    • Diarrhea
    • Decreased egg production
    • Hyperemia
  6. What are some clinical signs associated with high path avian influenza? 6
    • Sudden onset high mortality
    • Depression
    • +/- Nervous signs
    • Respiratory exudates
    • Reproductive tract regression
    • Vasculitis
  7. How is Avian Influenza diagnosed? 3
    • Pharyngreal/Cloacal swabs with Real-time PCR
    • Serology
    • Antigen capture ELISA
  8. What organization helps monitor backyard and live market poultry for avian influenza?
    National Animal Laboratory Health Network
  9. How is Avian Influenza controlled? 2
    • Monitoring by serology and real-time PCR
    • Eradication
  10. What viral disease is caused by a coronavirus resulting in coughing, sneezing, rales, nasal and ocular discharge, decline in egg production and mortality from secondary E. coli infection?
    Infectious Bronchitis
  11. What are some lesions associated with Infectious bronchitis? 3
    • Catarrhal inflammation of upper respiratory
    • Swollen kidneys and uroliths
    • Misshapen eggs
  12. How is Infectious bronchitis diagnosed? 3
    • Visus isolation in chick embryo
    • RT-PCR
    • Serum neutralization, ELISA
  13. How is Infectious bronchitis controlled? 2
    • Modified live vaccines (serotype strains Mass, Conn, Ark....)
    • Inactivated vaccines used on hens
  14. What viral disease is caused by a herpesvirus and has clinical signs of marked dyspnea, coughing, head extension, watery eyes, conjunctiva, bloody mucous and blood on face and feathers?
    Infectious Laryngotracheitis
  15. How is Infectious laryngotracheitis diagnosed? 3
    • Histopathology
    • Virus Isolation
    • PCR
  16. How is Infectious laryngotracheitis controlled? 3
    • Two live attenuated virus vaccines
    • Vectored/recombinant vaccines
    • CEO (chick embryo origin) vaccine (reverts to virulence, no good)
  17. What are the etiological agents behind Pullorum Disease? 2
    • Salmonella pullorum
    • Salmonella gallinarum
  18. What plan was put into action to prevent and control Pullorum Disease?
    National Poultry Improvement Plan
  19. What is the result of Pullorum disease in suscpetible chicks and poultry? 2
    • Fatal enteritis
    • Septicemia
  20. What human pathogen can cause an inapparent infection in hens and transmitted to humans through the egg yolk?
    Salmonella enteritidis
  21. If a farm tests positive for Salmonella enteritidis, what must be done?
    Submit 1000 eggs (3 times at 2-week intervals)
  22. What common GI organism in poultry is found in poultry dust at a concentration of 1 million organisms/gram?
    E. coli
  23. In what type of birds is E. coli a problem?