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Updates as of June 8, 2022:
This document provides guidance to local health departments on COVID-19 outbreak reporting requirements and recommendations for non-healthcare settings. This includes requirements for when facilities must report to local health departments (reporting thresholds), and outbreak definitions to determine when local health departments should report to CDPH.
Apart from these specific requirements, local health departments may make determinations on how to prioritize investigation and response to reported clusters or outbreaks; additional considerations for doing so are included below.
For additional guidance on outbreak reporting in workplaces, local health departments should consult
AB 685 COVID-19 Workplace Outbreak Reporting Requirements.
These outbreak definitions are used to determine when local health departments should report a COVID-19 outbreak to CDPH for surveillance purposes.
residential congregate settings such as dormitories, group homes, boarding houses, overnight camps, barracks, shelters, jails or prisons:
In non-residential congregate settings, e.g., adult and child daycare facilities, K–12 schools, colleges/universities, and all other non-healthcare workplaces:
When cases meeting a reporting threshold are reported to the local health department, the local health department will determine if further investigation is warranted; and if investigated, whether the cases constitute an outbreak using the definitions above. Local health departments may set their own criteria to determine which reported clusters warrant additional investigation and outbreak response. They may wish to consider factors such as size of the outbreak, settings and groups at increased risk, proportion of individuals testing positive, vulnerability of affected individuals, and/or other factors such as those described by
* Per the
CSTE COVID-19 2021 Case Definition (Aug 24, 2021):
Confirmed case: Meets confirmatory laboratory evidence (detection of SARS-CoV-2 RNA in a clinical or autopsy specimen using a molecular amplification test).
Probable case: Meets clinical criteria AND epidemiologic linkage‡ with no confirmatory lab testing performed for SARS-CoV-2; OR meets presumptive laboratory evidence (detection of SARS-CoV-2 by antigen test in a respiratory specimen); OR meets vital records criteria with no confirmatory laboratory evidence for SARS-CoV-2
Suspect case: Meets supportive laboratory evidence with no prior history of being a confirmed or probable case.
† Epidemiologically-linked cases include persons with close contact‡ with a confirmed or probable case of COVID-19 disease; OR a member of a risk cohort as defined by public health authorities during an outbreak. A "risk cohort" includes persons with potential for shared exposure with the case(s) through a shared defined physical space. Examples include but are not limited to persons in the same: classroom, school, extracurricular activity, work-shift, physical workspace or living/sleeping space.
CDPH Guidance for Isolation and Quarantine for definition of "close contact."
Originally Published on May 18, 2020