Currently authorized vaccines in the United States are highly effective at protecting vaccinated people against symptomatic and severe COVID-19. Fully vaccinated people are less likely to become infected and, if infected, to develop symptoms of COVID-19. There is preliminary evidence, however, that fully vaccinated people who do become infected with the Delta variant can be infectious and can spread the virus to others.
These recommendations for the management of fully vaccinated persons post exposure are adapted from the CDPH Guidance on Isolation and Quarantine for COVID-19 Contact Tracing and the following CDC guidelines:
A person is considered fully vaccinated ≥2 weeks following the receipt* of:
* This guidance can also be applied to COVID-19 vaccines that have been listed for emergency use by the World Health Organization (e.g., AstraZeneca/Oxford). See CDC Clinical Considerations People vaccinated outside the Unites States footnote 2 for current WHO list.
Refer them to People Who Have Been Fully Vaccinated section of Quarantine and Other Instructions for Close Contacts available at ph.lacounty.gov/covidquarantine.
Refer to setting-specific guidelines or protocols for more information.
Note: This guidance applies only to students of IHE. It does not apply to staff of IHE.
*Note: testing is required for international air travelers regardless of vaccination status. All travelers are required to have a negative COVID-19 test result no more than 3 days before they board a flight to the United States (or documentation of recovery from COVID-19 in the past 3 months). In addition, while quarantine is not needed for fully vaccinated person upon arriving in the United States, a viral test 3-5 days post travel is recommended. See CDC International Travel During COVID-19.
Refer to LAC DPH Travel Advisory and Guidance for additional details.
Immunocompromising conditions- CDC includes the following conditions that might affect the response to the COVID-19 vaccine: receiving chemotherapy for cancer, hematologic malignancies, being within one year from receiving a hematopoietic stem cell or solid organ transplant, untreated HIV infection with CD4 T lymphocyte count < 200, combined primary immunodeficiency disorder, and taking immunosuppressive medications (e.g., drugs to suppress rejection of transplanted organs or to treat rheumatologic conditions such as mycophenolate and rituximab, receipt of prednisone >20mg/day for more than 14 days). For more information, see Interim Public Health Recommendations for Fully Vaccinated People.