Pathogenic bacteria resistant to antibiotics?

Why are some pathogenic bacteria resistant to antibiotics? Some common bacteria are capable of causing disease if they find themselves in the wrong place. We call them “opportunists”. Many of these bacteria are becoming increasingly drug-resistant. That is, antibiotics that were once used to kill them, are no longer effective. Let's discuss together why this is occurring and what steps each of us can take to minimize the likelihood of creating these "super bugs." What simple means can you take to prevent getting infected by them? 200-250 WORDS