by Julia Evangelou Strait, Washington University School of Medicine A cross section of a peripheral artery from the leg of a patient with chronic limb-threatening ischemia, a condition in which heavy plaque formation causes a severe narrowing of the arteries. A new study from Washington University School of Medicine in St. Louis has identified a key...
Smriti Mallapaty A worker at Sheba Medical Center in Israel prepares a dose of the Pfizer–BioNTech COVID-19 vaccine. Breakthrough cases among the center’s vaccinated healthcare workers were rare in the first months of 2021.Credit: Jack Guez/AFP via Getty People fully vaccinated against COVID-19 are less likely to become infected with the coronavirus if they have...
