CDC monitors SARS-CoV-2 evolution through a multimodal genomic surveillance approach to track the emergence and spread of variants with substantial genetic changes across the United States and internationally (3,4).

WASHINGTON -- January 22, 2026 -- The U. S. Department of Health and Human Services and the U. S. Department of State today announced the United States' completion of its withdrawal from the World Health Organization (WHO) due to the organization's mishandling of the COVID-19 pandemic that arose out of Wuhan, China, its failure to adopt urgently needed reforms, and its inability to demonstrate independence from the inappropriate political influence of WHO member states.

WASHINGTON, D. C. -- JANUARY 5, 2026 -- Deputy Secretary of Health and Human Services Jim O'Neill, in his role as Acting Director of the Centers for Disease Control and Prevention (CDC), today signed a decision memorandum* accepting recommendations from a comprehensive scientific assessment of U.

WASHINGTON, D.