White blood cells (WBCs) are a crucial part of your immune system, defending the body against infections and foreign invaders. They identify, attack, and destroy harmful bacteria, viruses, and toxins. Different types of WBCs, such as neutrophils, lymphocytes, and monocytes, each play unique roles, from producing antibodies to engulfing pathogens. A strong immune response often requires medical support when infections become severe. For example, bacterial infections may need antibiotic treatment, where ceftriaxone injection distributors ensure reliable access to life-saving medications. By maintaining healthy levels of white blood cells, your body can effectively resist illness and recover more quickly.