Knowledge regarding avian cellular immunity has expanded rapidly within the last few years and new information continues to accumulate. It is now a well-established fact that cell-mediated immunity plays a major role in the defense against neoplastic and non-neoplastic diseases in chickens. The principle objective of Avian Cellular Immunology is to compile the latest information available on various aspects of avian cellular immunity. The book contains chapters written by leading experts in the field and covers topics including cell surface markers, T-cell immunity, natural immune functions, the role of macrophages in cellular immune functions, cellular immune suppression and tolerance, cellular immune systems in avian species other than chickens, the role of cellular immunity in neoplastic and non-neoplastic viral diseases, cell-mediated immune mechanisms in bacterial and parasitic infections, and autoimmune disorders.