Additional Reportable Diseases


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.