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Comparison of reactivity between seropositive donors born in different regions of Latin America. The median S/CO for donors born in Mexico was 8.79 (interquartile range [IQR], 7.78 to 8.95), 8.83 for those born in Central America (IQR, 8.67 to 8.94), and 8.85 (IQR, 8.74 to 9.15) for those born in South America. No significant difference in the reactivity of seropositive specimens was observed between regions. Bar and whiskers represent median with interquartile range.
