Researchers estimate nearly 17 million undiagnosed cases in the U.S. by mid-July 2020. Study notes American Indians and Alaska Natives had the second highest seropositivity rate (6.8%).
Researchers estimate nearly 17 million undiagnosed cases in the U.S. by mid-July 2020. Study notes American Indians and Alaska Natives had the second highest seropositivity rate (6.8%).