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Text File  |  1999-11-09  |  328b  |  10 lines

  1. When an antigen binds with a B cell, the B cell will D
  2. immediately start secreting antibodies that are specific to the antigen. 
  3. change into T cells, which then produce antibodies.
  4. then activate macrophages and secrete interferon.
  5. divide into memory cells and plasma cells.
  6. secrete interferon.
  7.  
  8. [#FRAME:"TRM4S8C"]
  9. NONE
  10.