50 years ago, scientists first investigated antibiotic resistance in livestock
Excerpt from the June 27, 1970 issue of Science News
![a photo of livestock cows](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/06/043020_jl_50ya-cattle_feat.jpg?fit=1028%2C579&ssl=1)
Decades of research into the effects of feeding antibiotics to cows and other livestock to boost their growth has revealed that the practice can be problematic for humans.
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