A An infectious disease is an attack by a microbe on human health. It is usually caused by a virus, a bacterium, or less often, a fungus or parasite.
Q What is an antibiotic?
A An antibiotic is a chemical compound made by one organism to fend off another.
Q What is antibiotic resistance?
A Antibiotic resistance occurs when the target of the antibiotic mutates and no longer is harmed by the antibiotic.
Q Why are bacteria becoming resistant to antibiotics? How does this happen?