Although some pharmaceutical companies maintain active antibiotic research programs, many have discontinued their antibiotic programs. So, while we need to encourage research and development of new antibacterial drugs, new drugs alone are not the answer. Ciprofloxacin (Cipro) was introduced in 1987 and works by “allowing topoisomerases to cut DNA, but not to “glue” the ends back together. The result is that the bacterium is no longer able to replicate its DNA, keeping the bacterial population under control” (Guilfoile 2007). However, resistance to ciprofloxacin exceeds 30% in some species of bacteria. Furthermore, it was concluded that “excessive use of Cipro could lead to the development of bacterial resistance to the drug, which would make it unusable for the treatment of infections” (Guilfoile 2007). In the late 1980s, approximately 5% of S. aureus strains were resistant. Consequently, to avoid this rapid increase in resistance in the future, new drugs should be reserved for use in special circumstances, especially for infections resistant to current antibiotics. The FDA or CDC may need to provide regulations on the use of new antibiotics. Otherwise, if new drugs are overused or overused, resistance to new antibiotics could also quickly develop. Consequently, it is for this reason and others mentioned above that methicillin-resistant Staphylococcus aureus (MRSA) is resistant to antibiotics. In conclusion, methicillin-resistant Staphylococcus aureus is an important and dangerous human pathogen. Hundreds of thousands of people contract S. aureus infection in the United States each year, and it does not normally affect healthy individuals unless there is a break in the skin due to injury or surgery where the bacteria can find a home. These... half the card... search this area. Furthermore, we must also become better consumers for our personal use of antibiotics because bacterial infections can also result from improper and excessive use of an antibiotic drug. We must prevent the spread of bacteria by washing our hands, fruits and vegetables. Raw eggs and undercooked meat are also suspected of creating bacterial infections. Furthermore, being properly vaccinated is an important fight against such infections. So “although humans are not yet close to winning the war against S. aureus, these measures can help provide the weapons we need to have a fighting chance” (Freeman-Cook and Freeman-Cook 2006). Perhaps one day, in the near future, the fight against bacterial infections will be solved and it will no longer be necessary to put forward the hypothesis “Why is methicillin-resistant Staphylococcus Aureus (MRSA) resistant to antibiotics”.”