And yet there were important advances long before the era of modern antibiotics and anesthesia. (discovermagazine.com)
It was replaced by modern antibiotics in the mid 1900's and rediscovered in the 1980's and 1990's. (clspress.com)
Emotive language and images are often used to convince farmers they should routinely be using the most modern antibiotics available, even though many scientists believe that such drugs should be held in reserve and only used for acute life - saving situations in farm animals, because closely related antibiotics are vitally important for saving lives in human medicine.» (treehugger.com)