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Updated 12 May 2015

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It’s often recommended that you replace your toothbrush after a bout of flu to prevent re-infection.

This is not correct – flu is caused by a virus against which your body has built up immunity following an infection. In the case of strep throat or bacterial infections of the mouth, however, you should buy a new brush as you can re-infect yourself with the bacteria.

For the latest on flu jabs and cold remedies, visit the Cold & Flu Centre.

 
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