A highly contagious SARS-CoV-2 variant was unknowingly spreading for months in the United States by October 2020, according to a new study from researchers with
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Are children a major source of contagion for COVID-19? Ten months into a pandemic that has claimed 1.2 million lives experts are still divided on
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(HealthDay)—Teens who live around lots of obese or overweight kids come to see their body types as ideal, a new study suggests. As a result,
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