Variable mortality during the 1918 influenza pandemic in Chicago [Biological Sciences]

In their study of influenza mortality in Chicago in 1918, Grantz et al. (1) conclude that pandemic-related mortality was related to "neighborhood level social factors" (e.g., illiteracy, homeownership, unemployment). Because "social factors" do not directly cause influenza illness or mortality, they must be surrogates for other factors. Other studies of...

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