Here’s some of HealthDay’s top stories for Wednesday, Aug. 4:

Delta variant is moving the goalposts for COVID-19. Unlike the original variant of SARS-CoV-2, the now-dominant Delta variant transmits far more easily. Experts believe that means many more people must now get vaccinated for societies to reach ‘herd immunity.’ Read more

Women can dance themselves to better health after menopause. Women may sidestep some of the physical and mental health downsides of aging through dance classes, a new Brazilian study finds. Read more

As U.S. diets change, anemia is on the rise. Key changes in how food is produced on the farm, as well as a shift away from red meat, means that cases of iron-deficient anemia are ticking upwards for Americans, research shows. Read more

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