Rezension:
I\'m sorry, she\'s prescription drugs abuse research paper Bacteria develop resistance to drugs quickly. Even before penicillin was introduced in 1943, staphylococcus germs were identified that were resistant to its effects. Just nine years after tetracycline was introduced in 1950, a resistant strain of Shigella evolved. Methicillin-resistant Staphylococcus aureas (MRSA) evolved just two years after methicillin hit the market in 1960.
