Source: Johns Hopkins (1/23/21)
(Screen captures from 3/10/20- available here; dynamic dashboard captures from 3/10/20 - 1/8/21 available here)
Centers for Medicare & Medicaid Services
Congressional Research Service
Department of Health & Human Services
Department of Homeland Security
Department of Housing and Urban Development
Department of the Treasury (older link)
Department of Veterans Affairs
Environmental Protection Agency
Federal Communications Commission
House Select Subcommittee on the Coronavirus Crisis
Immigration and Customs Enforcement
California
California Coronavirus (COVID-19) Response
Department of Public Health
Governor Newsom and state health officials briefings
San Diego
University of California
UC San Diego
UC San Diego Health
Archive of web content related to the Covid-19 outbreak
Mapping Applications
HealthMap: Novel Coronavirus (COVID-19)
Johns Hopkins University: Coronavirus COVID-19 Global Cases
University of Virginia: COVID-19 Surveillance Dashboard
News
LitCovid, from the National Library of Medicine, tracks and provides access to COVID-19 articles in PubMed.
The Copyright Clearance Center has compiled a list of publishers and organizations providing access to COVID-19 research.
A community-sourced list called Vendor Love in the Time of COVID-19 can help identify "licensed content that library vendors are making available on free or modified terms during the COVID-19 outbreak."
A separate COVID-19 guide from other UCSD librarians focuses on science/research aspects.
San Diego Law Library's guide to COVID-19 Legal Issues includes health, housing, employment, benefits, and more. Many resources are specific to San Diego or California, but some are federal.
Many other libraries have created helpful guides to resources; try a Google search using (coronavirus OR covid-19) libguide as search terms. The Federal Depository Library Program also has a guide to resources.
Tara Calishain's daily "CoronaBuzz" points to great "new resources, useful stuff, research news, and more."