Read about medical advances and research in Seattle and worldwide. Topics include treatments; surgery; diseases such as Zika; studies of the human brain, heart and cancer; mental health; drugs and vaccinations; and Medicare, the Veterans Administration (VA) and the Affordable Care Act, aka Obamacare. Institutions include the Hutch, UW Medicine, Harborview, Virginia Mason, Group Health and Swedish.

North Seattle HIV cluster among drug users and homeless people worries health officials

There was a nearly threefold increase last year in HIV cases in King County among heterosexuals who inject drugs, a spike that public-health officials attribute to rising opioid use and homelessness.

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