Table 3.

 Recent significant Department of Defense influenza isolate contributions to seasonal and pandemic influenza vaccine constitution

Isolation year	Vaccine strain	Virus	Detection population (institution)	Contribution
1999	A/Moscow/10/99 (H3N2)‐like	A/Panama/2007	Panama (USAFSAM)	Seed strain, northern and southern hemispheres: 2000–2004
1999	A/New Caledonia‐like	A/Peru/1521/99	Peru (NMRCD‐Lima)	Reference strain: 2000–2007
2006	A/Wisconsin/67/2005 (H3N2)‐like	A/Nepal/921/2006	Nepal (AFRIMS, WARUN)	Reference strain: 2007
2007	A/South Dakota/4344/Ellsworth	A/South Dakota/6/07	South Dakota (USAFSAM)	Seed strain (LAIV): 2008–2009
2009	A/California/7/2009 (HlNl)v‐like	A/California/7/2009 A/California/4/2009 A/Texas/5/2009	California (NHRC) California (NHRC) Texas (USAFSAM)	Seed strain: A/HlNlv 2009–2010