Did you know? You are supposed to replace your toothbrush after you have an episode of flu, cold or other viral infections. Notorious microbes can implant themselves on the toothbrush bristles leading to re-infection.
In general, it is a good idea to replace that toothbrush every few months anyway because it can become a source of bacteria over time. Keep up with regular checkups and you’ll get a new toothbrush with each visit! =)