>> A measles outbreak in Clark County, Washington State, has prompted officials there to declare a public health emergency. So far there have been 23 confirmed cases of the highly contagious disease, and officials fear that number could explode. The CDC says measles is so contagious that if one person has it, an unvaccinated person close by is 90% likely to catch it.
>> You spread it through the air. So the person with measles can leave the room and two hours later the disease can be transmitted.>> Clark County is home to more than 6,000 public school students who are not vaccinated for measles. The county sits across the river from Portland, Oregon, which is a known anti-vaccination hotspot.
Families there can choose not to vaccinate their child for personal, religious, or medical reasons. Doctors now worry the virus will spread to other hotspot zones across the country like Seattle, Phoenix, Detroit, and Pittsburg. In Clark County those infected with measles have told officials they had visited the Portland International Airport, a Portland Trail Blazers home game, Costco, and Ikea, potentially exposing thousands.