There are two main types of vaccines given to newborns at birth. The first one belongs to BCG vaccine. BCG vaccine mainly prevents children from getting tuberculosis because if a child is infected with Mycobacterium tuberculosis, he or she will develop symptoms of tuberculosis. For example, the child will develop tuberculosis, which is manifested by coughing and fever, which is a very serious condition that can put the child’s life and health at risk. There is also intestinal tuberculosis that causes the whole body, and the child will have diarrhea and enlarged lymph nodes. The second vaccine is called the hepatitis B vaccine, which is designed to prevent hepatitis. The hepatitis B vaccine mainly prevents this type of hepatitis caused by the hepatitis B virus, which is a very common pathogen in China, so the hepatitis B vaccine is given. After the child is vaccinated with the hepatitis B vaccine, parents should promptly test the child for hepatitis B two-to-one to see if protective antibodies are produced.