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National Notifiable Diseases Surveillance System (NNDSS)
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About CDC.gov
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NNDSS
COVID-19 Response
Defending America from Health Threats
How We Do Notifiable Disease Surveillance
Why We Do Notifiable Disease Surveillance
NNDSS By The Numbers
Surveillance Case Definitions
Coronavirus Disease 2019 (COVID-19)
2020 Interim Case Definition, Approved August 5, 2020
2020 Interim Case Definition, Approved April 5, 2020
2020 National Notifiable Conditions
Infectious Diseases
Non-Infectious Conditions
Outbreaks
History of Surveillance Case Definitions
Data and Statistics
Notifiable Infectious Diseases & Conditions Data
Weekly and annual tables
Notifiable Noninfectious Diseases & Conditions Data
Links to Data
HL7 Case Notification Resource Center
MMGs and Artifacts
MMG Related Documentation
Historical Documentation
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NETSS
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Search Conditions
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Coronavirus Disease 2019 (COVID-19)
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National Notifiable Time Periods
National notifiable time periods for condition
National Notifiable
Condition/Subtype
From Year
To Year
2020
Current
Coronavirus Disease 2019 (COVID-19)
Case Definition(s)
Coronavirus Disease 2019 (COVID-19) | 2020 Interim Case Definition, Approved August 5, 2020
(https://wwwn.cdc.gov/nndss/conditions/coronavirus-disease-2019-covid-19/case-definition/2020/08/05/)
Coronavirus Disease 2019 (COVID-19) | 2020 Interim Case Definition, Approved April 5, 2020
(https://wwwn.cdc.gov/nndss/conditions/coronavirus-disease-2019-covid-19/case-definition/2020/)
Search Conditions
Current and Historical Conditions
Indexed list of current and historical nationally notifiable conditions.
2020 Nationally Notifiable Conditions
Conditions designated as notifiable at the national level during 2020.
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Content source:
Centers for Disease Control and Prevention
Office of Public Health Scientific Services (OPHSS)
Center for Surveillance, Epidemiology, and Laboratory Services (CSELS)
Division of Health Informatics and Surveillance (DHIS)
National Notifiable Diseases Surveillance System (NNDSS)
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