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 Earn a bachelor's degree in computer science, computer information systems or software engineering. 2  Although some people manage to land jobs as software engineers without a bachelor's degree in a computer-related area, these people are few and far between.