A bacterial infection is any type of infection that is caused by bacteria (rather than a virus). Bacteria are very common in our bodies and in the world around us. Many of them are helpful. Less than 1% of bacteria will actually make us sick. When they do make us sick, it is called a "bacterial infection."
When we get bacterial infections, they usually have to be treated with antibiotics. The specific type of antibiotic depends on the type of bacteria that is causing the infection. Your doctor can decide which type of medication is best for you based on your symptoms and diagnosis.
If you get a bacterial infection and need to take antibiotics, taking the medication as directed is extremely important to cut down on antibiotic resistance.
"Bacterial Infections." Medlineplus 01 Aug 08. National Institute of Allergy and Infectious Diseases. 08 Aug 08.