IgA antibodies

IgA antibodies are specialized proteins in your immune system that help protect your body, especially areas exposed to the environment such as the nose, mouth, and digestive tract. They act like security guards by identifying and neutralizing germs like bacteria and viruses before they can cause illness. IgA antibodies are crucial for mucosal immunity, forming a first line of defense where infections often enter. They are found mainly in mucus, tears, saliva, and secretions from the lining of your respiratory and digestive systems, helping to keep these vulnerable areas healthy.