Additional reportable diseases include those diseases and conditions listed in WAC 246-101 for which a separate guideline document has not been developed because they are not commonly diagnosed in Washington residents.
Diseases and Agents that Should Be Reported
The 2023 revision of WAC 246-101-101 and WAC 246-101-201 includes the following conditions, which are considered reportable diseases and should be reported through the WDRS Reportable Disease condition code:
- Amebic meningitis^ (such as primary amebic meningoencephalitis due to Naegleria fowleri and granulomatous amebic encephalitis due to Balamuthia mandrillaris or Acanthamoeba spp.)
 - Baylisascaris*
 - Chagas disease^
 - Cysticercosis*
 - Echinococcosis
 - Histoplasmosis^
 - Smallpox
 - Taeniasis
 - Typhus^
 - Vancomycin-resistant Staphylococcus aureus
 
* Indicates condition endemic to the state recently identified in a Washington State resident
^ Indicates condition not endemic to the state recently identified in a Washington State resident
Purpose of Reporting and Surveillance
- To understand the epidemiology of emerging diseases in Washington State residents and to inform public health and health care about conditions that have been diagnosed in residents
 - To assist in the diagnosis and treatment of cases
 - If applicable, to identify potentially exposed close contacts, health care workers, and laboratory personnel and to provide counseling
 - To identify sources of transmission and to prevent further transmission
 
Legal Reporting Requirements
Reporting requirements differ by condition, see WAC 246-101-101.
Some of the agents are reportable to Washington State Department of Agriculture (WSDA) by veterinarians, see WAC 246-101-805.
Resources
- Case Definition (PDF)
 - Additional Reportable Diseases Reporting Form (PDF)
 - Additional Reportable Diseases Guideline (PDF)