National Immunization Survey (NIS)

The National Immunization Survey (NIS) is a key health study conducted in the United States to collect data on vaccination rates among children. It helps public health officials understand how many children are receiving their recommended vaccines and identify populations that may be at risk due to lower vaccination rates. The survey gathers information through telephone interviews and medical records, providing insights that guide immunization policies and programs. By tracking vaccination trends, the NIS supports efforts to ensure all children are protected from preventable diseases.