Volume 18, Number 5—May 2012
Dispatch
Human Infections with Novel Reassortant Influenza A(H3N2)v Viruses, United States, 2011
Stephen Lindstrom, Rebecca Garten, Amanda Balish, Bo Shu, Shannon Emery, LaShondra Berman, Nathelia Barnes, Katrina Sleeman, Larisa Gubareva, Julie Villanueva, and Alexander Klimov
Table 1
Results of analysis of viral RNA isolated from original clinical samples from persons with influenza A(H3N2)v virus infection, United States, 2011*
| Influenza virus strain | Contact with swine (11–13) | Specimen collection date | Specimen type | rRT-PCR–positive results† | Genes sequenced‡ |
|---|---|---|---|---|---|
| A/Indiana/08/2011 | No | Jul 24 | NPS | InfA, H3, pdmInfA | Full genome |
| A/Pennsylvania/09/2011 | Indirect | Aug 20 | NPS | InfA, H3, pdmInfA | Full PB2, PB1, HA, NP, NA, M, NS, partial PA |
| A/Pennsylvania/10/2011 | Direct | Aug 26 | NPS | InfA | Full NS, partial HA, M, NA |
| A/Pennsylvania/11/2011 | Indirect | Aug 25 | NPS | InfA, H3, pdmInfA | Full PA, NP, NA, M NS, partial PB2, PB1, HA |
| A/Maine/06/2011 | Direct | Oct 10 | NPS | InfA, H3, pdmInfA | Full genome |
| A/Indiana/10/2011§ | Direct | Oct 22 | Cell culture | InfA, H3, pdmInfA | Full genome |
| A/Maine/07/2011 | Direct | Oct 24 | NPS | InfA | Partial HA, M, NS |
| A/Iowa/07/2011 | No | Nov 14 | NPW | InfA, H3, pdmInfA | Full PB2, PB1, PA, NP, NA, M, NS, partial HA |
| A/Iowa/08/2011 | No | Nov 14 | NS | InfA, H3, pdmInfA | Full genome |
| A/Iowa/09/2011 | No | Nov 14 | NS | InfA, H3, pdmInfA | Full genome |
| A/West Virginia/06/2011 | No | Nov 21 | NW | InfA, H3, pdmInfA | Full genome |
| A/West Virginia/07/2011 | No | Dec 07 | NPS | InfA | Partial HA, NA, M |
*Influenza A(H3N2)v, influenza virus variant identified in humans; rRT-PCR, real-time reverse transcription PCR; NPS, nasopharyngeal swab; PB, polymerase basic protein; HA, hemagglutinin; NP nucleoprotein; NA, neuraminidase; M, matrix protein; NS, nonstructural protein; PA, polymerase acidic protein; NPW, nasopharyngeal wash; NS, nasal swab.
†Results obtained by using the Centers for Disease Control and Prevention Human Influenza Virus Real-Time RT-PCR Diagnostic Panel.
‡Sequences available from GenBank and the Technical Appendix Table.
§This patient was >18 years of age; all others were <18.
