The first outbreak this year was in Equatorial Guinea, which has seen 20 deaths already. Now there are cases reported in Tanzania as well for this infectious disease with a high fatality rate.

Researchers say the herd immunity threshold isn't the right finish line to end the pandemic. Instead, the public should just focus on getting as many people vaccinated as possible.

Dr. Scott Atlas is a radiologist from Stanford with some unorthodox ideas about managing the pandemic. The White House says his thinking is just what's needed, but scientists aren't so sure.