With measles outbreaks nearby, North Jersey medical practitioners are fielding calls from anxious patients and urging everyone to vaccinate their children against the highly contagious illness. Thus far, no cases have been reported in Bergen or Passaic counties, but there is growing concern because of proximity and intermingling with the other affected communities in Lakewood and Rockland County. Both also have large Orthodox Jewish populations. According to Aryeh Baer, M.D., a pediatric infectious disease specialist at the Joseph M. Sanzari Children’s Hospital, measles is highly transmissible and has the potential to spread, especially when people are not vaccinated. Dr. Baer noted that people should take all precautions, because one in every 1,000 people who get measles die from it.