The issue is clearly one of antimicrobial resistance. We are already familiar with superbugs and people who become ill with conditions that would normally have been very responsive to antibiotic treatment and are not anymore.
Based on the research worldwide that's been done, they estimate that more people will die from superbugs. If we do nothing globally with respect to our prudent antimicrobial use, there are going to be more people dying from that than die from automobile accidents and cancer in the world by 2050.
It's not an insignificant issue, and it's all about superbugs.