White blood cells (WBCs) play a crucial role in your immune system by defending the body against infections and diseases. These cells identify, attack, and destroy harmful bacteria, viruses, and other pathogens. There are several types of white blood cells, including neutrophils, lymphocytes, and monocytes, each with a specialized function. When infection occurs, WBCs increase in number to fight off the invaders. Medications like ceftriaxone, a powerful antibiotic, help support this immune response by eliminating bacteria, especially in serious infections. If you're a ceftriaxone supplier, understanding the immune system's reliance on WBCs highlights the importance of timely, effective antibiotic treatment.