FIGURE 1-7. Evidence of protection of the very elderly by “virtues of antigenic sin”: Age-specific excess P&I mortality rates for the 1968 pandemic compared to the 1980–1981 season.

FIGURE 1-7

Evidence of protection of the very elderly by “virtues of antigenic sin”: Age-specific excess P&I mortality rates for the 1968 pandemic compared to the 1980–1981 season.

From: 1, The Story of Influenza

Cover of The Threat of Pandemic Influenza
The Threat of Pandemic Influenza: Are We Ready? Workshop Summary.
Institute of Medicine (US) Forum on Microbial Threats; Knobler SL, Mack A, Mahmoud A, et al., editors.
Washington (DC): National Academies Press (US); 2005.
Copyright © 2005, National Academy of Sciences.

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