Diabetic Testing

My mom was checking your sugar level in one of these things home blood test, and she said she forgot to change the needle. My mother and father are the only two that use it, so I'm not worried about the disease, but nothing else can happen? I know it is not hepititis possibble to say whether this will happen, but it could. The biggest risk is the bacteria enters the blood of the mother. Hepatitis can be transmitted through blood contact (most people do not know who has hepatitis and often without symptoms).