What Part of the blood protects the body from infections?

The part of the blood that protects the body from infections is primarily composed of white blood cells, or leukocytes. These cells play a critical role in the immune system by identifying and attacking pathogens such as bacteria, viruses, and other foreign invaders. Different types of white blood cells, including lymphocytes and neutrophils, have specialized functions to effectively combat infections and help maintain the body’s health. Additionally, antibodies produced by B cells further enhance the immune response against specific pathogens.