Measles vaccination rate may be even lower than estimated, leaving kids vulnerable amid outbreak

As the United States faces one of its worst measles outbreaks in decades, a new analysis finds that nearly a third of young children who were eligible to be vaccinated against the disease did not get their first shot on schedule.

​ As the United States faces one of its worst measles outbreaks in decades, a new analysis finds that nearly a third of young children who were eligible to be vaccinated against the disease did not get their first shot on schedule. Read More Breaking News, Latest News and Videos | CNN