More than 100,000 people are on the U.S. transplant list, as an alternative, scientists are genetically altering pigs so their organs are more humanlike.
The changes probably mean a delay in authorization for vaccines for younger children, Dr. Anthony Fauci said.
Can a drug used to treat high cholesterol also treat COVID-19? It's a question researchers at Penn Medicine are trying to answer.
A doctor out of the UK says there's a possibility that by combining two different vaccines you can strengthen your immune response.
As Americans continue to line up for COVID vaccines, some California doctors are hoping to extend that option to younger children as well.
"The way out is vaccines": As many people struggle to get vaccinated, Moderna has already moved ahead to booster shots.
