Red blood cells don’t just shuttle oxygen from our lungs to our organs: they also help the body fight off infections by capturing pathogens in the blood and presenting them to immune cells in the spleen. Researchers from the Wyss Institute and Harvard SEAS have harnessed this innate ability to create a technology that uses red blood cells to initiate a strong immune response against an antigen without the need for a foreign adjuvant, setting the stage for safer, more effective vaccines.
Source: Better vaccines are in our blood