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Overuse and inappropriate prescribing of antibiotics worldwide is leading to the global healthcare issue of antibiotic resistance. However, the issue of antibiotic resistance can be confusing for many patients. You may be told you cannot use an antibiotic for a viral infection because they are ineffective and may lead to âantibiotic resistanceâ.
Image credit: CDC/ Janice Carr/ Deepak Mandhalapu. If antibiotics are overused or used incorrectly there is a risk that the bacteria will become resistant-the antibiotic becomes less effective against that type of bacterium. A broad-spectrum antibiotic can be used to treat a wide range of infections. A narrow-spectrum antibiotic is only effective against a few types of bacteria. There are antibiotics that attack aerobic bacteria, while others work against anaerobic bacteria. Aerobic bacteria need oxygen, while anaerobic bacteria don't.