The Summary of Notifiable Infectious Diseases and Conditions — United States, 2015 (hereafter referred to as the summary) contains the official statistics, in tabular and graphical form, for the reported occurrence of nationally notifiable infectious diseases and conditions in the United States for 2015. Unless otherwise noted, data are final totals for 2015 reported as of June 30, 2016. These statistics are collected and compiled from reports sent by U.S. state and territories, New York City, and District of Columbia health departments to the National Notifiable Diseases Surveillance System (NNDSS), which is operated by CDC in collaboration with the Council of State and Territorial Epidemiologists (CSTE). This summary is available at https://www.cdc.gov/MMWR/MMWR_nd/index.html. This site also includes summary publications from previous years.

The Highlights section presents noteworthy epidemiologic and prevention information for 2015 for selected infectious diseases and conditions and additional information to aid in the interpretation of surveillance and infectious diseases and conditions-trend data. Part 1 contains tables showing incident (new) cases and incidence rates for the nationally notifiable infectious diseases and conditions reported during 2015; these tables do not include rows for conditions with zero cases reported in 2015 (Tables 1, 2, 3, 4, 5, 6, and 7).* The tables provide the number of cases reported to CDC for 2015 and the distribution of cases by geographic location, MMWR month (MMWR month is based upon MMWR year and week, which is described in the Interpreting Data section of this report), and demographic characteristics (e.g., age, sex, race, and ethnicity). Table 1 is new to the summary and displays the national incidence count and rate for each nationally notifiable disease and condition. Tables 2 and 3 reflect content format from previous summaries. Tables 4–7, which have been an integral component of the summary for decades, also include incidence rates. Part 2 contains graphs and maps that depict summary data for selected notifiable infectious diseases and conditions described in tabular form in Part 1. The following tables in previous releases are no longer included in the summary: a table with the historical reported incidence of notifiable diseases and conditions and a table enumerating deaths associated with specified notifiable infectious diseases and conditions reported to CDC’s National Center for Health Statistics (NCHS), which were previously included in Part 3 of the summary. Historical notifiable disease data during 1944–2014 are available online in previous years’ summaries (https://www.cdc.gov/MMWR/MMWR_nd). The Selected Reading section presents general and disease-specific references for notifiable infectious diseases and conditions. These references provide additional information on surveillance and epidemiologic concerns, diagnostic concerns, and infectious disease-control activities.

Suggested citation for this article: Adams DA, Thomas KR, Jajosky RA, et al. Summary of Notifiable Infectious Diseases and Conditions — United States, 2015. MMWR Morb Mortal Wkly Rep 2017;64:1–143. DOI: http://dx.doi.org/10.15585/mmwr.mm6453a1.