Workshop

Inconsistencies. Instead of "leukocyte" (which includes both phagocytes and lymphocytes), it would be better to use "Phagocyte." Instead of phagocyte, use a helper T-lymphocyte, and instead of lymphocyte, use a killer T-lymphocyte.

Added 1 minute ago
If there are no bacteria, then "lymphocyte" can be replaced with the letter "T."