Multiple choice

In the absence of antibodies, what type of cells does diphtheria toxin attack?

  1. Nerve cells

  2. Heart cells

  3. Kidney cells

  4. All of these

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Without neutralizing antibodies, diphtheria toxin can enter the bloodstream and damage various tissues throughout the body, particularly targeting nerve cells, heart muscle cells (myocarditis), and kidney cells.