Volume 20, Number 10—October 2014
Dispatch
Human Infection with Highly Pathogenic A(H7N7) Avian Influenza Virus, Italy, 2013
Table 2
Antigenic analyses of influenza A/H7 viruses*
Viruses | Antiserum |
|||||
---|---|---|---|---|---|---|
A/Anhui/ 1/13 (ferret) | A/TK/It/ 3889/99 (ferret)† | A/TK/It/ 214845/02 (ferret) | A/GS/CZ/ 1848/09 (chicken)‡ | A/TK/Eng/ 647/77 (chicken)‡ | A/AS/Eng/ 983/79 (chicken)‡ | |
Reference | ||||||
A/Anhui/1/2013 (H7N9) | 320 | 80 | 80 | 80 | 40 | 80 |
A/turkey/Italy/3889/1999 (H7N1) | 80 | 80 | 80 | 40 | <40 | <40 |
A/turkey/Italy/214845/2002 (H7N3) | 40 | 80 | 80 | <40 | <40 | 40 |
A/goose/Czech Republic /1848/2009 (H7N9)§ | 40 | 40 | 40 | 320 | 40 | 40 |
A/turkey/England/647/1977 (H7N7) | 40 | <40 | 40 | 40 | 160 | 40 |
A/African starling/England/983/1979 (H7N1)§ |
40 |
<40 |
40 |
40 |
40 |
160 |
Test | ||||||
A/Italy/3/2013 (H7N7) | 40 | 40 | <40 | 160 | 40 | 80 |
*Data are hemagglutination inhibition titers. Homologous titers of reference viruses to serum samples are indicated in boldface. AS, African starling; GS, goose; TK, turkey.
†Antiserum from National Institute for Biologic Standards and Control, UK.
‡Antiserum from Animal Health and Veterinary Laboratories Agency, UK.
§Inactivated virus.
1Influenza Task Force members: Laura Calzoletti, Concetta Fabiani, Monica Meola, Annapina Palmieri, Arianna Boni, Guendalina Zaccaria (Istituto Superiore di Sanità, Rome); Marisa Cova, Valerio Parmeggiani, Claudio Po, Roberto Cagarelli, Gabriele Squintani, Emanuela Bedeschi (Emilia-Romagna Region, Bologna); and Maria Grazia Pompa (Ministry of Health, Rome).