In terms of non-infectious diseases that are influenced by microorganisms, nothing came to mind immediately, as I usually associate infectious diseases with the involvement of some sort of microorganism. I was surprised to find that the two were even linked once I did some research. It appears that previous infections with certain microorganisms can prime and increases the likelihood of the onset of a non-infectious disease in a human. Coming into contact with some microorganisms can permanently alter aspects of your body and ultimately they way it responds to certain non-infectious threats. A common example is the correlation between H. pylori and the development of gastric cancer – a connection I had never considered in my life.
Source: https://www.frontiersin.org/research-topics/5691/viral-and-bacterial-infections-leading-to-non-infectious-diseases-unveiling-the-missing-links
