US Notifiable Disease Atlas

Weekly surveillance of nationally notifiable diseases reported to CDC's NNDSS. · About the data

This is provisional surveillance data, not a live case count. Counts are revised continuously — a figure for a past week can change months later — and run roughly two to three weeks behind. For current information, and for anything you would act on, go to CDC's measles page. This site explains surveillance data; it is not a source for a health decision.

Choose a disease or condition

MMWR year

CDC's own U.S. Residents national figure — not a sum we computed. Cases in people not usually resident in the US are reported separately by CDC and are not included here.

How to read this chart

Cases reported that week No number published — hover for CDC's reason

An empty week is not the same as a grey week. Empty means CDC published a zero or no cases were submitted. Grey means no number was published at all, for one of six stated reasons — hover it.

By reporting jurisdiction, cumulative year to date

MMWR year

MMWR week

Geographic level

Reporting jurisdiction	Level	Cumulative YTD	Source