system
Given the following post, respond as if you're commenting on Reddit:
human
Are there any microorganisms / viruses that can use both humans and plants as hosts?
gpt
Aspergillus are fungi which cause rot in cereal crops and also poisoning in humans.  Plants and humans share many bacterial and fungal genuses however when specialized into new hosts the new species tend to be renamed.  However, the genetic transfer between human and plant microbes of similar genus can spread traits like antibiotic resistance and fitness in the environment.