Immunology is a part of biologythat covers the investigation of safe systemsin all creatures. Immunology diagrams, gauges, and contextualizes the physiological working of the invulnerable framework in conditions of both wellbeing and sicknesses; breakdowns of the resistant framework in immunological problems (like immune system infections, hypersensitivities, insusceptible insufficiency, and relocate dismissal); and the physical, synthetic, and physiological qualities of the segments of the safe framework in vitro, in situ, and in vivo. Immunology has applications in various controls of medication, especially in the fields of organ transplantation, oncology, rheumatology, virology, bacteriology, parasitology, psychiatry, and dermatology.