Increased Population Prevalence of Low Pertussis Toxin Antibody Levels in Young Children Preceding a Record Pertussis Epidemic in Australia (original) (raw)
Figure 2
Age specific pertussis notification rates per 100,000 population for the period 1991 to 2011.
In addition to the age specific notification rates per 100,000 population, this graph includes a trend line showing the percentage of notifications occurring in over 15 year olds over the same period.