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Dr. Nasia Safdar, medical director for infection prevention at UW Hospitals and Clinics in Madison, says breathing exercises can help people w…

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A pulse oximeter shows a blood oxygen level of 100% and a pulse of 74 beats per minute. Lower oxygen levels could signal that a COVID-19 infec…

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Morganne Seiner, right, stands with her husband, Andrew Seiner, left, at Firemen's Park in Waterloo. After isolating throughout the pandemic, …