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CDC is working with the Minnesota Department of Health and the New York City Department of Health and Mental Hygiene to investigate a confirmed case of COVID-19 caused by the Omicron variant.

The California and San Francisco Departments of Public Health have confirmed that a recent case of COVID-19 among an individual in California was caused by the Omicron variant (B.1.1.529).

Despite overall progress in reducing new infections among gay and bisexual men, the HIV epidemic continued and was more severe among Black or African American (hereafter referred to as Black) and Hispanic/Latino gay and bisexual men in the decade

Today, CDC is strengthening its recommendation on booster doses for individuals who are 18 years and older.

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On November 26, 2021, the World Health Organization (WHO) classified a new variant, B.1.1.529, as a Variant of Concern and has named it Omicron.

Today, CDC Director Rochelle P. Walensky, M.D., M.P.H., endorsed the CDC Advisory Committee on Immunization Practices' (ACIP) expanded recommendations for booster shots to include all adults ages 18 years and older who received a Pfizer-BioNTech or

Laboratory testing at the Centers for Disease Control and Prevention (CDC) today showed that recently discovered vials marked as "smallpox" contain vaccinia, the virus used in smallpox vaccine.

A recently published CDC report is helping uncover the characteristics of homicides of American Indian and Alaska Native (AI/AN) people.

Scientists at the Centers for Disease Control and Prevention (CDC) are collaborating with the Maryland Department of Health and other health partners to investigate a case of monkeypox in a traveler who returned to the United States from Nigeria.