what is the cause of yeast infection in babies mouth
Updated February 27, 2017. Thrush is a common infection that affects many newborns and younger children. It is caused by the Candida albicans yeast or fungus, which can also cause vaginal yeast infections and yeast diaper rashes. When it infects a child's mouth, it is called oropharyngeal Candidiasis, or more simply - thrush.