> Strangely many already had resistance Keep in mind that modern antibiotics were created partly because at the time plants with antibiotic properties were bei

> Strangely many already had resistance Keep in mind that modern antibiotics were created partly because at the time plants with antibiotic properties were being used so heavily that they were already becoming endangered. E.g.: https://en.wikipedia.org/wiki/Goldenseal https://en.wikipedia.org/wiki/Goldenseal