What is Case Surveillance? | National Notifiable Diseases Surveillance System (NNDSS) | CDC

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Privacy Act Statement
The U. S. Centers for Disease Control and Prevention (CDC) is responsible for the
reporting and dissemination of nationally notifiable conditions' information, as authorized by
the Public Health Service Act (42 USC 241) as of March 22, 2022. The National Notifiable
Diseases Surveillance System (NNDSS) is a reporting platform for states and territories to
voluntarily share with CDC the data that they collect from health care providers, medical
laboratories, and other related entities pursuant to state, territorial and local legislation and
regulations. CDC uses this information to monitor the occurrence of the conditions, identify
populations or geographic areas at high risk, plan prevention and control programs and
policies, allocate resources appropriately, and evaluate the effectiveness of programs and
policies. CDC also uses this information to trace cases and their contacts, obtain travel
histories and other information to describe and manage outbreaks, and conduct public
health follow-up to minimize the spread of disease.
The Privacy Act of 1974, 5 U.S.C. § 552a, governs the collection and use of this
information. The information maintained by CDC will be covered by CDC's System of
Records No. 09-20-0136, Epidemiologic Studies and Surveillance of Disease Problems,
including case reports, medical records, questionnaires, and related documents. CDC will
only disclose information from the system outside the CDC and the U.S. Department of
Health and Human Services as the Privacy Act permits, including in accordance with the
routine uses published for this system in the Federal Register, and as authorized by law.
Such lawful purposes may include, but are not limited to, sharing identifiable information
with state and local public health departments, and other cooperating authorities. CDC and
cooperating authorities will retain, use, delete, or otherwise destroy the designated
information in accordance with federal law and the System of Records Notice (SORN) set
forth above. You may contact the system manager at [email protected] or by mailing
NNDSS, Centers for Disease Control and Prevention, 4770 Buford Highway, MS S101-3,
Atlanta, GA 30341, if you have questions about CDC's use of your data.

Paperwork Reduction Act burden statements
National Notifiable Diseases Surveillance System

OMB No. 0920-0728 (Expiration Date: 11/30/2028). The public reporting burden of this
collection of information is estimated to average 20 minutes per response for states,
territories, freely associated states, and cities. This includes the time for reviewing
instructions, searching existing data sources, gathering and maintaining the data needed,
and completing and reviewing the collection of information. An agency may not conduct or
sponsor, and a person is not required to respond to all collection of information unless it
displays a currently valid OMB control number. Send comments regarding this burden
estimate or any other aspect of this collection of information, including suggestions for
reducing this burden to – CDC/ATSDR Reports Clearance Officer; 1600 Clifton Road NE,
MS H21-8, Atlanta, Georgia 30333 ATTN: PRA (0920-0728).