A new study shows high levels of coronavirus antibodies that fight the omicron variant four months after a third dose of the Pfizer vaccine, a positive sign for the durability of a booster shot’s effectiveness. Pei-Yong Shi, one of the authors of the study at the University of Texas Medical Branch, told The Washington Post that the study “shows that at least up to four months, post-dose three, there is still substantial neutralizing activity against omicron.” Several U.S. newspapers, television stations and online news outlets shared The Hill’s story.