There was an impressive sample.
There were fewer types of fungi than you would expect from a normal person, and the fungi detected were completely different from the ones we’ve seen in normal samples.

Cetobacterium (Cetobacterium)

This bacterium belongs to the Fuso bacterium phylum, and although there are only papers stating that it exists as a symbiotic bacterium in the intestines of fish, there has been little research on its effects on humans.

As it turned out, the owner of this sample was a 10-year-old girl suffering from chronic enteritis, and she was a Korean living in Indonesia.

1. Suffered from chronic enteritis since childhood
2. Prescribed various antibiotics – low diversity
3. Infected with tropical fish gut bacteria while living in a tropical region
4. As it turned out, this bacteria was resistant to antibiotics, so it survived while other bacteria died

The puzzle was solved, but we didn’t have a cure. Anyway, we told them that we had to change the treatment and see if it improved since the bacteria that survived antibiotic treatment were not beneficial to humans, and we heard that there was some improvement through new attempts.

It is said that there are many bacteria like this that are harmless in fish intestines but harmful to the human body. When you are young and healthy, you may be able to overcome some of the bacteria on your own and wash them away with a glass of soju, but in the intestines of the elderly, whose intestines are getting weaker, these bacteria can have a bad effect.