White blood cells (WBCs) fight infections effectively by identifying, targeting, and destroying harmful pathogens like bacteria and viruses. Different types of WBCs work together neutrophils quickly respond to infection sites, lymphocytes create antibodies, and macrophages engulf invaders. This coordinated immune response is essential in protecting the body. In serious bacterial infections, antibiotics like ceftriaxone injection are used alongside the immune system to eliminate bacteria. A reliable ceftriaxone injection supplier ensures the availability of this crucial antibiotic for timely treatment. Thus, both white blood cells and antibiotics play vital roles in defending the body against infections.