Volume 10, Number 1—January 2004
Research
Influenza Epidemics in the United States, France, and Australia, 1972–19971
Figure 1
![Weekly number of influenza and pneumonia deaths per 100,000 population from January 1972 to December 1997 in the United States, France, and Australia (black line). The red line represents the epidemic threshold defined by a seasonal regression.](/eid/images/02-0705-F1.jpg)
Figure 1. Weekly number of influenza and pneumonia deaths per 100,000 population from January 1972 to December 1997 in the United States, France, and Australia (black line). The red line represents the epidemic threshold defined by a seasonal regression.
1 This paper was presented at the Emerging Infectious Diseases conference held March 24–27, 2002, in Atlanta, Georgia, USA.
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