Antibiotic Resistance And Its Effects On The Body 's Immune System

1137 Words Oct 30th, 2016 5 Pages
When a bacterial infection attacks the body’s immune system, it is common to be prescribed a course of antibiotics. Antibiotics are designed to assist the body with fighting off invading bacteria and rid the body of the infection.

However, with the increasing use of antibiotics, certain types of bacteria are becoming resistant to the medication as prescriptions become more widespread, making the drugs less effective. This selective pressure encourages the bacteria to develop a resistance to the old medication, and may even develop into a ‘super bug’.

Microevolution is the frequency of allele changes within a small species group with traits that help the organism to survive. It can be applied to this development in the form of evolutionary mechanisms. Natural selection, mutations and small size are key aspects of these processes, and assist the bacteria in developing the genetic structure needed to become resistant to the antibiotic defences. It is this change that can have a significant impact on the lives of humans, whether they believe in evolutionary theory or not. Antibiotic resistance is a great threat to humans, and if it is not controlled quickly, the effectiveness of life saving medication may be wiped out completely. Even though it is major threat, it is widely unheard of, as most people remain unaware of the risks of the misuse of antibiotics.

Generally, the duration of antibiotic prescriptions is around six to seven days, however, resistance often occurs when…

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