The Japanese word for Japan is æ¥æ¬, which is pronounced Nippon or Nihon and literally means the origin of the sun. The earliest record of the name Nihon appears in the Chinese historical records of the Tang dynasty, the Old Book of Tang.
The secondary immune response occurs the second time (3rd, 4th, etc.) the person is exposed to the same antigen. At this point immunological memory has been established and the immune system can start making antibodies immediately.
What is the diffÃ©rence entre primary and secondary immune deficiency? primary: name given to chronic diseases caused by hereditary or genetic disorders of the immune system. Secondary immunodeficiencies or acquired more common than primary deficits, are immune system problems that are not genetic and which are caused by external factors. This question is archived.