Serologic Evidence of Avian Influenza H9N2 and Paramyxovirus Type 1 Infectionin Emus (Dromaius novaehollandiae) in India

An avian influenza (AI) surveillance was undertaken in Maharashtra state, India during the period 2010–2011. There are no reports of AI surveillance in emus from India. A total of 202 blood samples and 467 tracheal and cloacal swabs were collected from eight emu farms. A hemagglutination inhibition...

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Bibliographic Details
Published in:Avian diseases 2012-03, Vol.56 (1), p.257-260
Main Authors: Shinde, Prashant V, Koratkar, Santosh S, Pawar, Shailesh D, Kale, Sandeep D, Rawankar, Amol S, Mishra, Akhilesh C
Format: Article
Language:English
Subjects:
Age
Antibodies
avian influenza
avian paramyxovirus type 1
Case Reports
Dromaius novaehollandiae
emu
Farms
Fowl plague
H9N2
Hemagglutination inhibition
India
Manganese
Paramyxovirus
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Summary:An avian influenza (AI) surveillance was undertaken in Maharashtra state, India during the period 2010–2011. There are no reports of AI surveillance in emus from India. A total of 202 blood samples and 467 tracheal and cloacal swabs were collected from eight emu farms. A hemagglutination inhibition (HI) assay was performed for detection of antibodies against AI H5N1, H7N1, H9N2, and avian paramyxovirus type 1 (APMV-1) viruses. A microneutralization (MN) assay was performed to confirm the presence of neutralizing antibodies against AI H9N2 and to compare with HI assays. A total of 28.2% and 28.7% of samples were positive for antibodies against AI H9N2 by HI and MN assays, respectively, using ≥1∶40 as a cut-off titer; 15.3% samples were positive for APMV-1 by HI assay using a ≥1∶10 cut-off titer. Seropositivity of AI H9N2 was nil in the grower (
ISSN:0005-2086
1938-4351
DOI:10.1637/9878-080511-Case.1