New Data Details Dangers of Delta Variant, Even for the Vaccinated

FRIDAY, July 30, 2021 (HealthDay News) -- A new internal government document claims the Delta variant appears to cause more severe illness than earlier coronavirus variants and spreads as easily as chickenpox.

In laying out the evidence that this variant looks like the most dangerous one yet, the document urges health officials to "acknowledge the war has changed," the Washington Post reported.