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Volume 26, Number 12—December 2020
Research

Equine-Like H3 Avian Influenza Viruses in Wild Birds, Chile

Nicolas Bravo-Vasquez1, Jiangwei Yao1, Pedro Jimenez-Bluhm1Comments to Author , Victoria Meliopoulos, Pamela Freiden, Bridgett Sharp, Leonardo Estrada, Amy Davis, Sean Cherry, Brandi Livingston, Angela Danner, Stacey Schultz-Cherry, and Christopher Hamilton-WestComments to Author 
Author affiliations: University of Texas Health Science Center, Houston, Texas, USA (N. Bravo-Vasquez); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (J. Yao); University of Chile, Santiago, Chile (P. Jimenez-Bluhm, C. Hamilton-West); St. Jude Children’s Research Hospital, Memphis, Tennessee, USA (V. Meliopoulos, P. Freiden, B. Sharp, L. Estrada, A. Davis, S. Cherry, B. Livingston, A. Danner, S. Schultz-Cherry)

Main Article

Table 2

Hemagglutination inhibition assay used for analysis of equine-like H3 avian influenza viruses in wild birds, Chile*

Virus
 Subtype
 Ferret antiserum titers
eq/Miami/1963
 eq/NY/2016
 YBP/Chile/2015
A/equine/Miami/1/1963 H3N8 1:640 <1:10 <1:10
A/equine/NY/2016 H3N8 1:1,280 1:640 <1:10
A/yellow-billed pintail/Chile/2015
 H3N6
 <1:10
 <1:10
 1:160
Test viruses
A/equine/Uruguay/1/1963 H3N8 1:320 <1:10 <1:10
A/equine/Chile/EQCL003/2018 H3N8 1:640 1:320 NT
A/red-fronted coot/Chile/5/2013 H3N6 <1:10 <1:10 1:160
A/red-gartered coot/Chile/C16030/2016 H3N4 <1:10 <1:10 1:80
A/mallard/Oregon/449221–105/2006 H3N6 <1:10 <1:10 <1:10
A/duck/Minnesota/34/1976 H3N8 <1:10 <1:10 <1:10
A/mallard/Wisconsin/22/1974 H3N5 <1:10 <1:10 <1:10
A/blue winged teal/Wisconsin/279/1975 H3N8 <1:10 <1:10 <1:10
A/green winged teal/Alaska/292/2011 H3N8 <1:10 <1:10 <1:10
A/northern pintail/Alaska/496/2012 H3N8 <1:10 <1:10 <1:10
A/northern pintail/Alaska/870/2014 H3N8 <1:10 <1:10 <1:10

*Bold indicates homologous serum inhibition values. eq/Miami/1963, A/equine/Miami/1/1963; eq/NY/2016, A/equine/NY/2016; YBP/Chile/2015, A/yellow-billed pintail/Chile/2015; NT, not tested.

Main Article

1These authors contributed equally to this article.

Page created: July 27, 2020
Page updated: November 19, 2020
Page reviewed: November 19, 2020
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