ENFERMEDAD DE GUMBORO PDF

Infectious bursal disease (also known as Gumboro disease) is an Publisher: La bursitis infecciosa (enfermedad de Gumboro) es una patología viral específica. The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of. Clasificación de cepas del virus de la Enfermedad de Gumboro (RT-PCR, aislamientos y estudios de protección cruzada) y la optimización de la aplicación de.

Author: Kataur Zololkis
Country: Greece
Language: English (Spanish)
Genre: Automotive
Published (Last): 4 April 2006
Pages: 145
PDF File Size: 10.63 Mb
ePub File Size: 16.72 Mb
ISBN: 600-7-86117-293-5
Downloads: 10450
Price: Free* [*Free Regsitration Required]
Uploader: Zolozil

The difficulty in controlling pathotypic variants is linked to the difficulty of ve an early immune response, because of the risk of the vaccine virus being neutralised by maternal antibodies.

Gumboro control requires a balanced approach including hygienic measures and vaccination. Search Search this site: Two clinical pictures are distinguished: Infectious bursal disease also known as Gumboro disease is an immunosuppressive viral disease specific to chickens.

Autogenous or multivalent vaccines are required to control antigenic variants in areas where classical and variant virus strains coexist. The First Line of Defence Interactive animations are provided to illustrate, in a simplified form, the interaction of IBD virus and circulating neutralising antibodies.

Clinical signs Severity of disease is dependant on the virulence of the infective virus, and the immune status of wnfermedad infected bird. Control is best achieved by improved biosecurity and vaccination. However, these markers are not universally recognised and tend to be considered as evolutionary markers. Infectious Bursal Disease Gumboro. There is no IBD vaccination schedule that can be routinely recommended.

  CHORO DA SAUDADE BARRIOS PDF

Gumboro Disease or Infectious bursal disease virus IBDV is a chicken disease targeting the Bursa of Fabricius, an important organ in the young chicken’s developing immune system. Enfermedxd animations are provided to illustrate, in a simplified form, the interaction of IBD virus and circulating neutralising antibodies. Pathotypic variants very virulent viruses remain antigenically related to classical viruses.

Referencias

The causative agent, a Birna virus, destroys immature B-lymphocytes in the Bursa of Fabricius resulting in immunosuppression. Various factors influence the vaccination schedule.

Antigenic variants of the infectious bursal disease virus possess modified neutralising epitopes that allow them to evade the action of maternally-derived or vaccine-induced antibodies. Common causes apart, failure of vaccination against infectious bursal disease is associated mainly with early vaccination in flocks of unknown immune status and with the evolution of viruses circulating in the field, leading to antigenic drift and a sharp rise in pathogenicity.

enfermedad de gumboro en Mexico (infeccion de la bursa de Fabricius) [1978]

Vaccination schedules There is no IBD vaccination schedule that can be routinely recommended. The aim of the site is to provide a platform for peer reviewed disease information, vaccination information and links to other relevant Gumboro topics.

  ENTSCHEIDUNG AM THUNDER RIFT PDF

In spite of all the information amassed on the antigenic and immunological characteristics of the virus, the disease has not yet been brought fully under control. You have JavaScript disabled This may result in reduced functionality and affect the graphical presentation of this site.

Caracterización genómica y epidemiología molecular de la enfermedad de Gumboro – Biotech Spain

View animations International site versions Spanish Turkish. This may result in reduced functionality and affect the graphical presentation of this site.

Various highly sensitive molecular techniques have clarified the viral gunboro of antigenicity and pathogenicity of the infectious bursal disease virus.

However, all content will still be available. Mathematical calculation of the optimal vaccination time and the use of vaccines resistant to maternally-derived antibodies have improved the control of very virulent viruses. It is still prevalent in properly vaccinated flocks carrying specific antibodies at levels normally high enough to prevent the dd.