or cellular immunity, occur through the T-cell system. On exposure to an antigen, the lymphoid tissues release large numbers of activated T cells into the lymph system. These T cells pass into the general circulation. There are three main groups of T cells: (a) helper. (b) cytotoxic T cells: which attack and kill microorganisms and sometimes the body's own cells.
Organ Donation Day. About Organ Donation Day. Organ Donation Day in India is celebrated on 13th of August every year by the people, government organizations and other related professions in order to motivate normal human beings to donate the organs as well as to understand the value of organ donation in the life of an individual.
1 In 2014, 29,532 people received organ transplants. 2  Below is the number of recipients by age group followed by the number who received organs from deceased and living donors: 3  1 - 5 Years: 503 (417 deceased, 86 living donors). 4  6 - 10 Years: 284 (226 deceased, 58 living donors). However, an average of 21 people die each day waiting for transplants that can't take place because of the shortage of donated organs. 2  People of every age give and receive organ donations. 3  In 2014, 29,532 people received organ transplants.