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.
Primary versus Secondary Immune Response The primary immune response occurs the first time that the immune system comes in contact with the antigen.
The immune system is the first line of defense against pathogens. The most obvious example is the skin. However, the two main differences between the Innate and Adaptive immune responses are: 1  Innate immunity is non-specific.  Innate immunity does not confer long-term immunity.