Its BACK. While the current outbreak is in western Texas and Eastern NM, it is expected to spread to other States. Measles is an acute viral respiratory illness characterized by fever, malaise, cough, conjunctivitis, a pathognomonic enanthema (oral lesions), followed by a maculopapular rash. In pregnancy, this could lead to significant maternal and fetal morbidity. What are Koplick Spots? What is the "Rule of 4" with measles, and what is important about the number 10? Listen in for this QUICK RECAP of Measles 101!