Multiple choice

Which of the following diseases in humans is caused by S. typhimurium?

  1. Typhoid

  2. Typhus fever

  3. Gastroenteritis

  4. Paratyphoid fever
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

S. typhimurium causes gastroenteritis in humans. When the bacterial cells enter epithelial cells lining the intestine, they cause host cell ruffling which temporarily damages the microvilli on the surface of the cell. This causes a rush of white blood cells into the mucosa, which throws off the ratios between absorption and secretion and leads to diarrhoea.

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