Unlocking the secrets of our body’s first line of defense against strep throat and more

Researchers have mapped the complex structures of secretory immunoglobulin A (sIgA) in interaction with human CD89 and Streptococcus pyogenes M4, offering new insights into how our first line of mucosal defense operates. The study reveals the intricate ways these components may influence each other, impacting both bacterial survival strategies and host immune responses.