In this article. CD4 cells are a type of white blood cell that fights infection. Another name for them is T-helper cells. CD4 cells are made in the spleen, lymph nodes, and thymus gland, which are part of the lymph or infection-fighting system.n this article. CD4 cells are a type of white blood cell that fights infection. Another name for them is T-helper cells. CD4 cells are made in the spleen, lymph nodes, and thymus gland, which are part of the lymph or infection-fighting system.
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1 The Diploma program will prepare students for jobs such as fabricator, laser operator, welder/press operator or welder.  The curriculum for the Metal Fabrication/Welding Technical Diploma program is the first year of studies in the Metal Fabrication/Welding - Advanced Associate of Applied Science Degree program. Students who complete the technical diploma will require just one additional year of studies to earn their associate degree.