A patient at the doctor's office getting a vaccine shot. Credit: ShutterstockA team led by researchers at Weill Cornell Medicine, the University of Wisconsin-Madison; Scripps Research and the University of Chicago has identified an antibody that appears to block infection by all dominant variants of the virus that causes COVID-19, including omicron, the most recent. “The take home message here is that the next generation of vaccines should try to stabilize the spike in a more open position,” Dr