A similar tactic was used in Cuba and New Orleans to combat yellow fever. [1] They used a layer of oil rather than gasoline though. [1] http://exhibits.hsl.vir

A similar tactic was used in Cuba and New Orleans to combat yellow fever. [1] They used a layer of oil rather than gasoline though. [1] http://exhibits.hsl.virginia.edu/yellowfever/new_strategies/ http://exhibits.hsl.virginia.edu/yellowfever/new_strategies/