Multiple choice

Which of the following is mismatched?

  1. Syphilis-Treponema pallidum

  2. Fireblight of apples-Erwinia amylovora

  3. Citrus canker-Phytomonas citri

  4. Plague-Clostridium tetani

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

Plague is caused by the bacterium Yersinia pestis, not Clostridium tetani (which causes tetanus).