Study highlights need for full Covid vaccination to protect against Delta variant

A new study published Thursday in Nature adds new detail about the dominant variant, analyzing how well Delta, in a lab dish, was able to evade monoclonal antibody drugs such as bamlamivimab and natural antibodies made in our bodies after infection or vaccination. Looking at both kinds of antibodies in blood drawn from 162 patients and how they reacted to Delta, researchers from the Institut Pasteur in France found lower protection against the variant than against three other variants also notable for how easily they spread from person to person.