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Viral Infections clinical trials recruiting in the U.S.

31 studies for Viral Infections are recruiting participants at sites across the United States.

Viruses cause familiar infections such as the common cold, but they also cause severe illnesses. Learn more about viral infections and their symptoms.

Cities with the most studies

• Washington, DC11 studies
• Houston, TX7 studies
• Hialeah, FL6 studies
• Boston, MA6 studies
• Baltimore, MD5 studies
• Dallas, TX4 studies
• Atlanta, GA4 studies
• Cincinnati, OH4 studies
• Miami, FL4 studies
• New York City, NY4 studies
• Columbus, OH4 studies
• Salt Lake City, UT3 studies
• Cleveland, OH3 studies
• Durham, NC3 studies
• Boise, ID3 studies
• Worcester, MA3 studies
• Los Angeles, CA3 studies
• San Francisco, CA3 studies
• Richmond, VA3 studies
• Omaha, NE3 studies
• St. Louis, MO3 studies
• Tampa, FL3 studies

By state

• Alabama3 studies
• California12 studies
• Colorado3 studies
• District of Columbia5 studies
• Florida7 studies
• Georgia5 studies
• Idaho3 studies
• Illinois4 studies
• Kentucky3 studies
• Louisiana3 studies
• Maryland13 studies
• Massachusetts6 studies
• Michigan4 studies
• Missouri4 studies
• Nebraska3 studies
• New York7 studies
• North Carolina5 studies
• Ohio10 studies
• Pennsylvania5 studies
• South Carolina3 studies
• Texas10 studies
• Utah5 studies
• Virginia5 studies

Recently updated studies

From ClinicalTrials.gov, data retrieved Nov 15, 2026. Each study sets its own eligibility; the study team decides who can join.