About These Tables

National Notifiable Diseases Surveillance System (NNDSS) Tables  
Data for selected nationally notifiable diseases reported by the 50 states, New York City, the District of Columbia, and the U.S. territories are collated and published weekly in the Morbidity and Mortality Weekly Report (MMWR). Cases reported by state health departments to CDC for weekly publication are provisional because of ongoing revision of information and delayed reporting. Case counts in these query tables are presented as they were published in the MMWR . Therefore, numbers listed in later MMWR weeks may reflect changes made to these counts as additional information becomes available.

 

Mortality Tables
As part of its national influenza surveillance effort, CDC receives weekly mortality reports from 122 cities and metropolitan areas in the United States within 2-3 weeks from the date of death. These reports summarize the total number of deaths occurring in these cities/areas each week, as well as the number attributed to pneumonia and influenza. Data are published weekly in Table IV of the Morbidity and Mortality Weekly Report (MMWR).