Allergic reactions to the new mRNA-based COVID-19 vaccines are rare, typically mild and treatable, and they should not deter people from becoming vaccinated, according to research from the Stanford University...

Editor’s note: Find the latest COVID-19 news and guidance in Medscape’s Coronavirus Resource Center. Women are reporting more severe side effects after receiving COVID-19 vaccines, which...

Despite improvements in prevention of graft-versus-host disease, chronic GVHD still occurs in 10%-50% of patients who undergo an allogeneic hematopoietic stem cell transplant, and these patients may require...