Epidemiological investigation of avian influenza in regions of Northern Greece


J. PAPANIKOLAOU (I. ΠΑΠΑΝΙΚΟΛΑΟΥ)
M. KOUMBATI-ARTOPIOU (Μ. ΚΟΥΜΠΑΤΗ-ΑΡΤΟΠΟΙΟΥ)
Résumé

The results of an avian influenza viruses surveillance program in chicken and turkey industrial flocks, as well as in some wild birds from regions of N. Greece during 1999-2000 are presented in this paper. For this purpose, avian influenza virus isolation was attempted by inoculation of samples from chickens and wild birds into embryonated chicken eggs. The samples originated from 35-60 week-old layers and breeders with mild respiratory signs and drop in egg production. 34 wild birds (sparrows, chaffinchs, gulls), that were brought dead to the laboratory of Veterinary Research Institute of Thessaloniki, were also examined in order to investigate the cause of their death. At the same time, 720 serum samples from 30 chicken and 6 turkey flocks were examined by Agar Gel Immunodiffusion (AGID) test. During the same period and in the framework of a surveillance program for avian influenza viruses in Greece, 2580 paired serum samples from chicks were tested by AGID test. Chicks were imported from Italy, where a Highly Pathogenic Avian Influenza was in progress during 1999-2000. All virus isolation attempts and serological tests were negative.

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Références
Easterday Β C, Hinsaw V S, Halvorson D A. Influenza. In:Diseases of Poultry, 10th ed, Iowa State University Press, Amess, Iowa, 1997, 583-605.
Claas E C J, Osterhaus A D Μ E, Ruud van Beek, Dejong J C, Guus F, Rimmelzwaan, Senne D A, Kraus C, Shortridge Κ F, Webster R G: Human influenza A H5N1 virus related to a highly pathogenic avian influenza virus. The Lancet 1998,351:472-477.
Pringle C R: The universal system of virus taxonomy of the International Committee on Virus Taxonomy (ICTV), including new proposals ratified since publication of the Sixth ICTV report
in 1995. Arch Virol 1998,143:203-210.
Alexander D J.: A review of avian influenza in different bird species. Vet Microbiol 2000, 74: 3-13.
Capua I, Mutinelli F, Marangon S, Alexander D J: H7N1 avian influenza in Italy (1999-2000) in intensively reared chickens and turkeys. Av Pathol 2000,29:537-543.
Alexander D J: Epidemiology and control of avian influenza and Newcastle disease. J Comp Pathol 1995,112:105-126.
Capua I, Marangon S. The avian influenza epidemic in Italy, 1999-2000: a review. Av Pathol 2000, 29:289-294.
Georgiadis G. Contribution into the study of respiratory diseases of broillers in Greece. PhD thesis. Thessaloniki. 1998.
CEC Council Directive 92/40/EEC of 19 May 1992 introducing Community measures for the control of avian influenza. Official Journal of the European Commission, L167:1-15.
MeulemansG, Carlier MC, Gonze M, Petit P.: Comparison of Hemmagglutination-Inhibition, Agar Gel Precipitin and Enzyme - Linked Immunosorbent Assay for measuring antibodies against
influenza viruses in chickens. Av Dis 1987,31: 560-563.
Franciosi C, D'Aprile Ρ Ν, Alexander D J, Petek M.: Influenza A virus infections in commercial turkeys in North East Italy. Αν Pathol 1981,10:303-311.
Slemons R D, Condobery Ρ Κ, Swayne D E.: Assessing pathogenicity potencial of waterfoul-origin type A influenza viruses in chickens. AvDis 1991,35: 210-215.
Ito Τ, Goto Η, Yamamoto E, Tanaka H, Takeuchi M, Kuwayama M, Kawaoka Y.: Generation of a Highly Pathogenic Avian Influenza Virus from an avirulent isolate by passaging in chickens. J Virol 2001,75: 4439-43.
Graves L. : Influenza viruses in birds of the Atlantic flyway. Av Dis 1992,36:1-10
Suss J, Schäfer J, Sinnneker H, Webster R G.: Influenza viruses subtypes in aquatic birds of eastern Germany. Arch Virol 1994, 135:101-114.
Manvell R J, McKinney P, Wernery U, Frost K.: Isolation of a highly pathogenic influenza A virus of subtype H7N3 from a peregrine falcon (Falco peregrinus). Av Pathol 2000,29:635-637.