Note: This message is displayed if (1) your browser is not standards-compliant or (2) you have you disabled CSS. Read our Policies for more information.
Antibiotics do not work for viruses such as colds, influenza, most sore throats and bronchitis. Taking antibiotics when they are not needed increases the risk of future resistance when they are prescribed.
Page last updated September 23, 2013
Page last reviewed September 16, 2013