Figure 4.

Matrices of natural logarithm-transformedPRNT titers from secondaryinfections stratified by strain. The ā€œnā€ on the upper right of each exposure column represents the number of titers, filled squares indicate the pooled median log titer for all strains within that particular box, diamonds with crosshairs represent median log titers for strains, horizontal lines span the 25th-75th percentiles (interquartile range), and vertical lines mark the 5th and 95th percentiles of the data.

Rainwater-Lovett et al. BMC Infectious Diseases 2012 12:233   doi:10.1186/1471-2334-12-233
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