Chasing The Virus: News 12 Special

We thought we were safe from the measles. Two decades ago, the disease was declared eliminated in the United States. Now it’s back and spreading fast. New York City and the Hudson Valley are at the center of the contagion. 'Chasing the Virus,' a News 12 special, examines the re-emergence of the measles: how officials are tracking the virus’ path, controversies surrounding vaccinations and what comes next.