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. 2019 Oct 22;7(4):158. doi: 10.3390/vaccines7040158

Figure 2.

Figure 2

Distribution of FRNT log antibody concentrations at the first sampling in participants excluding those with evidence of measles virus (MV) infection prior to the first sample (n = 83) taken shortly after the onset of a measles outbreak in the Netherlands, 2013–2014. Colors indicate MV infection status. The vertical dashed line depicts the correlate of protection against measles (0.345 IU/mL) and the vertical dotted line the correlate of protection against MV infection (2.06 IU/mL). Three children had antibody concentrations below the lower limit of detection (0.06 IU/mL). FRNT: focus reduction neutralization test.