The main vaccines that babies need at nine months are the group A meningococcal polysaccharide vaccine.
Generally after birth to about one and a half years old need to be vaccinated more types of vaccines, is the intensive period of vaccination, about nine months need to play group A meningococcal polysaccharide vaccine, but can also extend the time of vaccination, if the baby in the nine-month-old disease should not be inoculated vaccine, can also be postponed to 10 months when the vaccine, the baby basically will not have a greater impact.
As babies are relatively young and physically weak, it is important to seek regular medical attention for vaccination, and it is best not to blindly delay vaccination, so as not to cause the emergence of disease, affecting the health of the baby.