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. 2018 Jul 3;6(3):39. doi: 10.3390/vaccines6030039

Figure 4.

Figure 4

The geometric mean titers (with confidence interval) with deployment as a variable is shown for the S1 and S2 blood draws. The viruses used for testing HI titer for 2003 cohort subjects were A/New Caledonia/20/1999 (H1N1), A/Moscow/10/1999 (H3N2), and B/Hong Kong/330/2001 (Victoria lineage). The viruses used for testing HI titer for 2003 cohort subjects were A/California/07/2009 (pdmH1N1), A/Perth/16/2009 (H3N2), and B/Brisbane/60/2008 (Victoria lineage). The difference between the two groups was evaluated using the Mann Whitney rank test. NS, not significant; and **, p < 0.01.