Volume 17, Number 9—September 2011
Research
Increasing Incidence of Invasive Haemophilus influenzae Disease in Adults, Utah, USA
Figure 2

Figure 2. Annual incidence of invasive Haemophilus influenzae disease in adults, by age, Utah, USA, 1998–2008. Red line, age >65 y; black line, ages 18–64 y.