Question

After receiving a vaccine, which cells in the immune system will be affected?!

Answer 1

White blood cells are the cells that are affected by the vaccine, because the way a vaccine works, is that it's supposed to imitate the disease that it's supposed to prevent, so that it can prepare the white blood cells to attack the disease if it were to ever occur in the future for real.

Hope this makes sense, and is what you were looking for.

Answer 2

Macrophages, T cells, and B cells

Step-by-step explanation:

Antigens stimulate a number of cells in the immune system