A team of French investigators has discovered viruses containing genes for antibiotic resistance in a fossilized fecal sample from 14th century Belgium, long before antibiotics were used in medicine.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/t...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/t...