New Study Finds Step Throat Will Not Contaminate Your Toothbrush

October 29, 2013 by Dr. Emanuel Layliev Blog


You can continue to use your old tooth brush after having strep throat or the flu.  A new study that was shared at a recent Pediatric Academic Societies meeting in Washington, D.C. dispelled that myth once and for all.

Conducted by group of researchers from the University of Texas Medical Branch at Galveston, the study tested the ability of A Streptococcus, the bacteria linked to strep throat, to grow on adult and children’s toothbrushes.

For the adult study, toothbrushes were exposed to the bacteria for two full days. The results were then compared with two new toothbrushes that were not exposed to A Streptococcus. Even so, both new toothbrushes happened to grow bacteria, though not the kind that causes strep.

For children’s study, 14 patients with strep throat, 15 patients with sore throats, and 27 healthy patients surrendered the tooth brushes they had been using on a daily basis. The tools were then tested under laboratory settings.

The results

The only bacteria that was identified was found on a toothbrush that belonged to one of the healthy participants. None of the other toothbrushes grew streptococcus, rather they showed traces of the same bacteria that is found in every human mouth.

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