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description=A surveillance case definition is a set of uniform criteria used to define a disease for public health surveillance in order to classify and count cases.;
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Text of the page (random words):
surveillance case definitions for current and historical conditions skip directly to site content skip directly to search an official website of the united states government here s how you know official websites use gov a gov website belongs to an official government organization in the united states secure gov websites use https a lock or https means you ve safely connected to the gov website share sensitive information only on official secure websites national notifiable diseases surveillance system nndss centers for disease control and prevention cdc twenty four seven saving lives protecting people case data implementation resources search search menu navigation menu submit advanced search national notifiable diseases surveillance system nndss national notifiable diseases surveillance system nndss national notifiable diseases surveillance system nndss home case definitions implementation guides supporting documents for implementation event codes other surveillance resources about the nndss dynamic content application nndss home case definitions implementation guides supporting documents for implementation event codes other surveillance resources about the nndss dynamic content application nndss home surveillance case definitions for current and historical conditions surveillance case definitions for current and historical conditions a surveillance case definition is a set of uniform criteria used to define a disease for public health surveillance surveillance case definitions enable public health officials to classify and count cases consistently across reporting jurisdictions surveillance case definitions are not intended to be used by healthcare providers for making a clinical diagnosis or determining how to meet an individual patient s health needs while the list of reportable conditions varies by state the council of state and territorial epidemiologists cste has recommended that state health departments report cases of selected diseases to cdc s national notifiable diseases surveillance system nndss every year case definitions are updated using cste s position statements they provide uniform criteria of national notifiable infectious and non infectious conditions for reporting purposes use the search box below to search for notifiable diseases case definitions by name or year search conditions leave blank to see all conditions notifiable condition lists year 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 infectious non infectious outbreaks div a acanthamoeba disease excluding keratitis acanthamoeba keratitis acquired immunodeficiency syndrome acute flaccid myelitis afm afm aids aids hiv alpha gal syndrome amebiasis anaplasma phagocytophilum anaplasma phagocytophilum infection anaplasmosis anthrax arboviral diseases neuroinvasive and non neuroinvasive arboviral encephalitis arboviral encephalitis or meningitis b babesiosis balamuthia mandrillaris disease blastomycosis botulism botulism foodborne botulism infant botulism other botulism wound brucellosis c california serogroup encephalitis california serogroup encephalitis meningitis california serogroup virus diseases campylobacteriosis cancer candida auris candida auris clinical candida auris colonization screening candida auris screening candida auris screening surveillance carbapenemase producing carbapenem resistant enterobacteriaceae cp cre carbapenemase producing organisms cpo carbapenemase producing organisms clinical carbapenemase producing organisms screening carbon monoxide poisoning chagas disease chagas disease acute chagas disease chronic chagas disease congenital chancroid chickenpox chikungunya virus disease chlamydia trachomatis infection chlamydia trachomatis genital infections cholera coccidioidomycosis congenital cytomegalovirus ccmv infection and disease congenital cytomegalovirus disease congenital cytomegalovirus infection congenital toxoplasmosis coronavirus disease 2019 covid 19 covid 19 associated pediatric mortality cp cre enterobacter spp cp cre escherichia coli e coli cp cre klebsiella spp crimean congo hemorrhagic fever virus crs cryptococcus gattii infection cryptosporidiosis cutaneous anthrax cyclosporiasis d dengue dengue fever dengue hemorrhagic fever dengue shock syndrome dengue virus infections dengue like illness df dhf diphtheria drsp dss e e coli o157 h7 eastern equine encephalitis eastern equine encephalitis virus disease eastern equine encephalitis meningitis ebola virus ehec ehrlichia chaffeensis ehrlichia chaffeensis infection ehrlichia ewingii ehrlichia ewingii infection ehrlichia muris eauclairensis ehrlichia other spp or unspeciated ehrlichiosis ehrlichiosis and anaplasmosis encephalitis encephalitis arboviral encephalitis postinfectious or parainfectious encephalitis primary enterohemorrhagic escherichia coli escherichia coli o157 h7 f firearm related injury flea borne typhus foodborne disease outbreak free living amebae infections g gas genital herpes genital warts german measles giardiasis gonorrhea granuloma inguinale h haemophilus influenzae invasive disease hansen s disease hantavirus infection non hantavirus pulmonary syndrome hantavirus pulmonary syndrome hemolytic uremic syndrome post diarrheal hepatitis a acute hepatitis b acute hepatitis b acute historical version hepatitis b acute and chronic hepatitis b chronic hepatitis b chronic historical version hepatitis b perinatal infection hepatitis c acute hepatitis c chronic hepatitis c perinatal infection hepatitis d hepatitis viral acute hge histoplasmosis hiv infection aids has been reclassified as hiv stage iii hme hps human granulocytic ehrlichiosis human monocytic ehrlichiosis hus i influenza associated hospitalizations influenza associated pediatric mortality ingestion anthrax inhalation anthrax injection anthrax invasive cronobacter infection among infants invasive pneumococcal disease ipd k kawasaki syndrome l lassa virus latent tb infection tb infection lead in blood lead elevated blood levels lead elevated blood levels adult 16 years lead elevated blood levels children legionellosis leprosy leptospirosis listeriosis lujo virus lyme disease lymphogranuloma venereum m malaria marburg virus measles melioidosis meningitis aseptic meningitis other bacterial meningococcal disease mis c monkeypox virus infection mpc mucopurulent cervicitis multisystem inflammatory syndrome in children mis c associated with sars cov 2 infection mumps n naegleria fowleri causing primary amebic meningoencephalitis pam new world arenavirus chapare virus new world arenavirus guanarito virus new world arenavirus junin virus new world arenavirus machupo virus new world arenavirus sabia virus ngu non pestis yersiniosis nongonococcal urethritis novel influenza a virus infections o ornithosis congenital oropouche virus disease oropouche virus disease non congenital oropouche virus disease orov other or unspecified human ehrlichiosis p pelvic inflammatory disease pertussis pesticide related illness and injury acute pid plague poliomyelitis paralytic poliovirus infection nonparalytic poliovirus nonparalytic poliovirus infection poliovirus paralytic poliomyelitis poliovirus paralytic poliomyelitis and nonparalytic poliovirus infection powassan encephalitis meningitis powassan virus disease psittacosis q q fever q fever acute q fever chronic r rabies animal rabies human respiratory syncytial virus associated mortality rsv associated mortality reye syndrome rheumatic fever rift valley fever virus rmsf rocky mountain spotted fever rubella rubella congenital syndrome rubeola s salmonella paratyphi infection salmonella enterica serotypes paratyphi a b tartrate negative and c s paratyphi salmonella typhi infection salmonella enterica serotype typhi salmonellosis sars cov severe acute respiratory syndrome associated coronavirus disease severe dengue shiga toxin producing escherichia coli shigellosis silicosis smallpox soft tick relapsing fever soil transmitted helminth infections spinal cord injury spotted fever rickettsiosis st louis encephalitis st louis encephalitis virus disease st louis encephalitis meningitis stec streptococcal toxic shock syndrome streptococcus disease invasive group a streptococcus pneumoniae drug resistant invasive disease drug resistant invasive disease streptococcus pneumoniae invasive disease streptococcus pneumoniae invasive disease child streptococcus pneumoniae invasive disease non drug resistant child strongyloidiasis stss syphilis syphilis historical version syphilis congenital syphilis early non primary non secondary syphilis primary syphilis secondary syphilis unknown duration or late t tb tetanus toxic shock syndrome other than streptococcal toxoplasma gondii toxoplasmosis toxoplasmosis active primary infection toxoplasmosis active reactivation disease toxoplasmosis past infection unable to classify trichinellosis trichinosis trypanosoma cruzi tss tuberculosis tularemia typhoid fever u undetermined human ehrlichiosis anaplasmosis v valley fever vancomycin intermediate staphylococcus aureus and vancomycin resistant staphylococcus aureus varicella varicella deaths variola vhf vibriosis viral hemorrhagic fever viral meningitis visa vrsa w waterborne disease outbreak welder s anthrax west nile encephalitis meningitis west nile virus disease western equine encephalitis western equine encephalitis virus disease western equine encephalitis meningitis whooping cough y yellow fever z zika virus disease and zika virus infection zika virus disease congenital zika virus disease non congenital zika virus infection congenital zika virus infection non congenital top of page last reviewed june 2 2026 source office of public health data surveillance and technology facebook twitter linkedin syndicate case definitions implementation guides supporting documents for implementation event codes other surveillance resources about the nndss dynamic content application nndss home about cdc contact us 800 232 4636 facebook twitter instagram linked in youtube pinterest snapchat rss contact cdc contact us call 800 232 4636 email us about cdc about cdc jobs funding policies accessibility external links privacy policies foia oig no fear act nondiscrimination vulnerability disclosure policy public health publications hhs gov usa gov connect with us facebook twitter instagram linked in youtube pinterest snapchat email languages español 繁體中文 tiếng việt 한국어 tagalog русский العربية kreyòl ayisyen français polski portuguese italiano deutsch 日本語 فارسی english accessibility external links privacy policies foia oig no fear act nondiscrimination vulnerability disclosure policy cdc archive public health publications hhs gov usa gov