Clinical pathology cares with the identification, treatment, and interference of health problem. Clinical pathologists unit doctors with special coaching job World Health Organization sometimes direct all of the special divisions of the laboratory research, which might embrace the bank, clinical chemistry and biology, toxicology, haematology, medical specialty and medical science, and biological science. Hematopathology or hemopathology is that the branch of pathology that studies diseases of hemopoietic cells. Transfusion is that the branch of medication that is committed the transfusion of blood and blood components. Medical biological science may be a branch of medication committed the hindrance, identification and treatment of infectious diseases. Immunopathology may be a branch of medication that deals with immune responses reated with unwellness. It includes the study of the pathology of associate degree organism, organ system, or unwellness with regard to the system, immunity, and immune responses.