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Serologic and virologic screening of paramyxovirus type 1 and avian influenza virus (H5∓mp;H7) in wild migratory birds in Sweden (preliminary study)
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution.
2001 (English)In: Proceedings of the joint seventh annual meetings of the national Newcastle disease and avian influenza laboratories of countries of the European Union, 2001Conference paper (Refereed)
Abstract [en]

Following outbreaks of Newcastle disease in 1995 and 1997 in Sweden, and an

outbreak of highly pathogenic avian influenza (HPAI) in Northern Italy during the

winter of 1999/2000 a study was initiated to evaluate the presence of paramyxovirus

type 1 (PMV-1) and avian influenza viruses (H5&H7) (AIV) in the wild avifauna in


Materials and Methods

The study was performed during the spring of 2000. In total, 150 serum samples and

120 cloacal swabs were obtained from 53 migrating bird species (orders Anseriformes,

Charadriiformes, Columbiformes, Strigiformes, Piciformes and Passerinformes) (Table

1) at Ottenby Bird Station on southern Öland (an island in the Baltic off the south-east

coast of Sweden). The swabs were obtained from the same, but not all, individual birds

as the serum samples. The bird species were selected based on their winter habitat, in

order to sample migratory birds which were likely to have either spent the previous

winter in Italy or visited Italy while migrating northwards. Additionally, cloacal swabs

from Anseriformes in southern Sweden will be analysed during the spring of 2001.

The serum samples were tested by hemagglutination-inhibition test for the presence of

antibodies to AIV, and by a blocking ELISA (SVANOVIR Svanova Biotech,

Uppsala, Sweden) for antibodies to PMV-1. All cloacal swabs were cultured according

to Council directive 92/66/EEC and 92/40/EEC. Following each of the three passages

the allantoic fluid was tested for hemagglutinating (HA) virus.


One serum sample from a Ringed Plover (Charadrius hiaticula) showed a low titer

(1:16) against AIV (H5). None of the serum samples were positive for PMV-1, however

three Ringed Plovers showed PI-values of 40%. No cloacal swabs were available from

these four birds. No viruses were isolated from any of the cloacal swabs.

Place, publisher, year, edition, pages
URN: urn:nbn:se:uu:diva-21868OAI: oai:DiVA.org:uu-21868DiVA: diva2:49641
Directorate General for Health and Consumer Protection, Sanco E2 COMMISSION OF THE EUROPEAN COMMUNITYAvailable from: 2007-01-05 Created: 2007-01-05

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