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Tracking COVID-19: U.S. Public Health Surveillance and Data

Published Nov 2, 2020Updated Jun 20, 2025

The Congressional Research Service is a nonpartisan policy and legal analysis arm of the Library of Congress. CRS reports are written for members of Congress and their staff, not the public — but they’re made available openly through Congress.gov.

Tracking COVID-19: U.S. Public Health Surveillance and Data — Informed