Two Johnson City women are under arrest and charged with aggravated child abuse and neglect.According to a release from the Johnson City Police Department, officers responded to Niswonger Children’s Emergency Room on Monday in reference to alleged child abuse that occurred at an apartment in the Johnson City limits of Carter County.In the release, investigators said Christina Niles abused her eight-month-old child allegedly causing “serious bodily injury.” Then the grandmother did nothing to stop Niles and protect the baby and she was also arrested.