Final answer:
Report this information to the state health department.
Step-by-step explanation:
When several children from the same family who did not receive immunizations contract measles, it is important to report this information to the state health department. Measles is a highly contagious disease, and reporting outbreaks helps public health officials track and control the spread of the disease. By notifying the state health department, they can take appropriate measures to prevent further transmission and protect the community.