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Revista Brasileira de Ciência Avícola 2003, 5 3

Autor: H Hidalgo

Fuente: http://www.redalyc.org/


Introducción



Revista Brasileira de Ciência Avícola ISSN: 1516-635X revista@facta.org.br Fundação APINCO de Ciência e Tecnologia Avícolas Brasil Hidalgo, H Infectious Laryngotracheitis: A Review Revista Brasileira de Ciência Avícola, vol.
5, núm.
3, septiembre-diciembre, 2003, pp.
157-168 Fundação APINCO de Ciência e Tecnologia Avícolas Campinas, SP, Brasil Available in: http:--www.redalyc.org-articulo.oa?id=179713981001 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative Brazilian Journal of Poultry Science Revista Brasileira de Ciência Avícola ISSN 1516-635X Sep - Dec 2003 - v.5 - n.3 - 157 - 168 Author(s) Hidalgo H DVM, MS College of Veterinary Sciences University of Chile Mail Address Santa Rosa Nº11735 La Pintana, Santiago, Chile. Casilla 2 Correo 15 La Granja, Santiago, Chile. E-mail: hhidalgo@uchile.cl Keywords Infectious Laryngotracheitis: A Review ABSTRACT Infectious laryngotracheitis (ILT) herpesvirus continues to cause outbreaks of respiratory disease in chickens world-wide.
Sporadic cases of ILT occur in all classes of birds, including hobby-show-game chickens, broilers, heavy breeders, and commercial laying hens.
These epornitics of ILT tend to occur where there are large populations of naïve, unvaccinated birds, i.e., in concentrated areas of broiler production.
ILT virus can be transmitted through (a) chickens with acute upper respiratory tract disease, (b) latently infected “carrier” fowls, and (c) fomites and contaminated persons.
Chicken flocks which are endemic infected with ILT virus occur only in some regions of countries or even in particular multiple-age production farms.
In these cases modified live vaccines are actually used, even though these biological products, as well as wild ILTV strains, c...





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