Innate and acquired immunity
White blood cells, antibodies, and antibiotics, and some bacteria even help get rid of some bacterial diseases.
proteins
The fetus doesn't necessarily fight off diseases. The mom's immune system fights off certain things. Also, some diseases don't cross over into the baby so depending on what it is, the baby isn't at risk until possibly birth.
White blood cells
Soldiers(bodycells)
white blood cells
If you mean a white blood cell, it fights any infections or diseases.
It fights off viruses and bacteria.
White blood cells.
because if you are unlucky enough to suffer from HIV then it completley shuts down your immune system. and its your immune system that fights of infections and diseases
the immune system fights diseases by creating more white blood cells which trigger more white blood cells that make antibodies.
The white blood cell fights off infection in the immune system.