A growing body of evidence implicates environmental organisms as reservoirs of these resistance genes; however, the role of anthropogenic use of antibiotics in the emergence of these genes is controversial. We report a screen of a sample of the culturable microbiome of Lechuguilla Cave, New Mexico, in a region of the cave that has been isolated for over 4 million years. We report that, like surface microbes, these bacteria were highly resistant to antibiotics; some strains were resistant to 14 different commercially available antibiotics. … This supports a growing understanding that antibiotic resistance is natural, ancient, and hard wired in the microbial pangenome.
This natural antibiotic resistance predates our use of antibiotics and could simultaneously (i) explain how such resistance appears rapidly after the introduction of a new antibiotic and (ii) relieve evolutionists of one of their already ridiculous arguments:
Clinical microbiologists have been perplexed for the longest time. When you bring a new antibiotic into the hospital, resistance inevitably appears shortly thereafter, within months to years. It’s still a big question: Where is this coming from. Almost no one thought to look at other bacteria, the ones that don’t necessarily cause disease.
Nothing in biology makes sense in the light of evolution.