What may actually occur in our immune system following a vaccination​

Infection-causing microbes and the vaccines designed to combat them have portions of proteins called antigens. These antigens stimulate a number of cells in the immune system, including macrophages, T cells, and B cells.

Infection-causing microbes and the vaccines designed to combat them have portions of proteins called antigens. These antigens stimulate a number of cells in the immune system, including macrophages, T cells, and B cells.

answer; hepatitis a& b can be passed through breast milk; (true);