chromosomes
The laws of gravity as expressed by Sir Issac Newton were determined before Dr. Louis Pasteur discovered penicillin.
England 1928
Because children have weak immune systems unlike adults. So since there were no antibiotics, children would die faster then adults.
Before antibiotics were discovered, sulfa drugs were used to fight infection. They are still used prophylacticly for some conditions. For many years they were used to stop recurring bladder infections and some doctors used them to stop recurring infections among asthmatics.
Alexander Fleming in 1928.
Antibiotics are a medicine that was first discovered in the year 1928. The man responsible for inventing them was named Alexander Fleming.
the second world war had started
Alexander Fleming discovered penicillin at St. Mary's Hospital.
He discovered the Penicillin.Which is the most important discovery when it comes to the history of antibiotics.
Alexander Flemming first discovered, cultured and used penicillin
Antibiotics were first discovered in mold and bacteria found in nature. The first true antibiotic, penicillin, was derived from the Penicillium mold and discovered by Alexander Fleming in 1928. Subsequent development and mass production of antibiotics took place in laboratories and pharmaceutical companies, particularly during World War II, to meet the increasing medical needs. Today, antibiotics are synthesized and produced in various facilities around the world.