anitbiotics are medicines that help make our bodies resistant to diseases.
for instance,penicillin (discovered in 1943)was viewed as a breakthrough in medicine.
penicillin is one type of antibiotic.
it was a significant improvement to the medicine availble at the time and was used to cure many diseases from the flu to common bacterial infectibns.
this had important implications during world war 2 when many soldiers were fighing on the battlefield.