This is a tuff question because there are a lot of drugs that if misused could cause this problem. I wish this was multiple choice. But im going with "Oxycodone" as my answer
The correct answer is B, high rates of vaccination
<span> Infrared Cloud Imager </span>
An organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner layer being folded inward to form layers.