MIT Researchers Develop Adjuvant to Enhance Injectable Polio Vaccine's Mucosal Immunity
Researchers at the Massachusetts Institute of Technology have developed a new adjuvant that could enhance the mucosal immunity of the injectable polio vaccine. The injectable form of the polio vaccine is effective at preventing illness but does not block virus transmission as effectively as the oral version. The oral vaccine induces a mucosal immune response in the gastrointestinal tract, which is the primary site of virus exposure. However, due to a small risk of infection, several countries have stopped using the oral vaccine. The new adjuvant, known as Am80, is delivered with a lipid nanoparticle that releases it slowly, allowing for a sustained immune response. This approach aims to combine the safety of the injectable vaccine with the mucosal immunity benefits of the oral vaccine, potentially aiding in polio eradication efforts.