Measles Outbreak in New York City Has Health Officials Looking For Answers

New York health officials are investigating an outbreak of measles the city after 16 people tested positive in two of the city's five boroughs, reports CBS. Officials do not yet know where or how the outbreak began, but are urging everyone who is not vaccinated to do so as soon as possible. Measles infects 90 percent of unvaccinated people if they exposed to it.