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.
C) Active immunity results when a person is given someone elseâs antibodies, whereas passive immunity results when a personâs immune system works to produce antibodies and activate other immune cells to certain pathogens.