White blood cells (WBCs), or leukocytes, are vital to your immune system, defending against infections and diseases. These cells, including lymphocytes, neutrophils, and macrophages, identify and destroy pathogens like bacteria and viruses. Neutrophils engulf invaders, while lymphocytes produce antibodies for targeted attacks. A healthy WBC count ensures robust immunity, but infections may require treatments like ceftriaxone injection wholesale, a broad-spectrum antibiotic, to support immune efforts. WBCs also aid in tissue repair and inflammation control. Maintaining a balanced diet, exercise, and timely medical interventions strengthens immunity, ensuring WBCs effectively protect your body from harmful microbes and maintain overall health.