Discuss the recommendation for whether a child with weakly positive surface antibodies and positive core antibodies should receive a booster Hepatitis B vaccine.

Vitamin K deficiency may lead to the presence of red blood cells and white blood cells in a newborn’s stool, causing hypoprothrombinemia, which in turn results in abnormal blood clotting function and skin hemorrhagic spots.

Is vitamin K deficiency related to breastfeeding?