Resistance to Antibiotics
Antibiotics are medicines that help make our bodies resistant to diseases.
For instance, penicillin (discovered in 1943) was viewed as a breakthrough
discovery in medicine.
Penicillin is one type of antibiotic.
It was a significant improvement to the medicine available at the time and was used to cure many diseases from the flu to common bacterial infections.
This had important implications during World War II when many soldiers were fighting on the battlefield.
But just three years after the invention of penicillin , doctors found that some germs from bacteria could not be killed with penicillin. In other words, they had adapted to the penicillin antibiotics and become stronger.