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Comparison of model fits to reported early syphilis case data. Model-projected reported cases are shown for Louisiana (A) and Massachusetts (B) for the years 2012 to 2016. Modeled outputs are based on 1000 best-fit parameter sets. Median values are shown in black. Note that different y-axis ranges are used for the data from the 2 states. Early syphilis includes primary, secondary, and early latent syphilis cases.
