Answer:
Protein synthesis.
Explanation:
Shiga toxin is expressed by the genome of the lamboid prophages. Diphtheria toxin is a type of toxin that causes diphtheria in the individual.
The shiga and diphtheria toxin are proves to be harmful in the humans and causes harmful disease. Both these toxins inhibit the protein synthesis or translation of the host cell. The inhibition of protein synthesis causes drastic harmful effects in the individual.
Thus, the answer is protein synthesis.
A population....... I think
A disease known as Multiple myeloma follows your requirements.
Hope it helped,
Happy homework/ study/ exam!