Why Are White Blood Cells Critical for Immunity?

White blood cells are critical for immunity because they defend the body against infections and foreign invaders. These cells identify, target, and destroy harmful pathogens like bacteria, viruses, and fungi. Different types of white blood cells such as neutrophils, lymphocytes, and monocytes work together to ensure a swift immune response. For example, neutrophils are the first responders to bacterial infections. Ceftriaxone, a powerful antibiotic, is often used to treat severe infections that overwhelm white blood cells. A reliable ceftriaxone injection supplier ensures timely access to this life-saving treatment, supporting the immune system when it needs extra help in fighting infections.