Default: U.S. population (editable)
Method
Counts are calculated as: annual expected burden × (fraction of the year elapsed). This is a counterfactual illustration based on historical pre-vaccine rates.
This page shows how many cases and deaths would be expected to have occurred so far this year if historical pre-vaccine disease rates still applied.
Default: U.S. population (editable)
Counts are calculated as: annual expected burden × (fraction of the year elapsed). This is a counterfactual illustration based on historical pre-vaccine rates.