Figure 4From: Three-dimensional visualization of cultural clusters in the 1878 yellow fever epidemic of New Orleansa and b – Results of a "built-environment" clustering approach with French and Italian nativity members clusters identified. Twenty-two clusters meeting the combined requirement of deaths being separated by less than 50 m, deaths being less than 21 days apart and groupings having at least 5 members are displayed. These are coloured according to their major cohort, with the six French and three Italian clusters being specifically identified.Back to article page