Antibiotics: How Long They Take to Work and More - Verywell Health
Antibiotics are medications used to treat infections that are caused by bacteria. There are several classes of antibiotics—some that only target specific bacteria and others that can be used against a wide range of organisms. This article will explore how antibiotics work, what they are used to treat, and how quickly they can help end an infection. TEK IMAGE / SCIENCE PHOTO LIBRARY / Getty Images What Is An Antibiotic? Antibiotics are substances that get their start in nature, usually as fungi or other forms of bacteria that exist in soils. These substances are able to bind to the cell walls of harmful bacteria, penetrating the cell to either kill the bacteria or prevent it from reproducing. Penicillin was the first antibiotic developed, and it happened by accident. British scientist Alexander Fleming developed penicillin in the late 1920s after noticing that a mold growing on the same plate as Staphylococcus aureas bacteria was des...