dr. diane westerberg from cooper university tase the course of action of sending that patient home is appropriate. >> if he's at home and not exposed to anyone who is at rick for measles then it's okay. the danger comes when kids or adults who are not vaccinated against measles come in contact with him. and then it's highly susceptible. >> reporter: and if you have questions about measles or about the vaccine dr. westerberg is here at "action news" for a live facebook chat. just go to the 6abc "action news" facebook page and you can send in your questions or your comments. the chat goes until 5:30 tonight. rick, back over to you. >> all right ali thank you. >>> we are covering that outgoing measles outbreak on 6abc.com and of course we'll have updates on any possible cases in our area along with more information on the measles including frequently asked questions about the disease as ali mentioned. we'll also have a look back at that 1991 measles outbreak that took place here in philadelphia. >> a chester county teacher was arrested accused of having sex with one of his underage students year ago

dr. diane westerberg from cooper university hospital says this about measles cases in general. >> as long as he's quarantined and only in contact with people who have had measles or the measles vaccination then everything should be fine. the problem comes when he's exposed to people who have not had the disease or who have not had the vaccination. it is highly contagious. >> reporter: now this all comes amid a measles outbreak in the united states with more than 100 cases reported. measles had been declared completely eliminated just 15 years ago in the united states. measles can be serious, in some cases leading to swelling of the brain and i think death. dr. westerberg urged all parents who have not had their children vaccinated to do so. that's the latest live in norristown, dan quai yeah channel6 "action news." >> we're covering the measles outbreak on 6abc.com for you. we'll have updates on any possible cases in our area along with more information on the measles including frequently asked questions about the disease. we also have a look back at the deadly 1991 measles outbreak here