Warning sign for measles aka morbilli, rubeola ラウンドシール

Warning sign for measles aka morbilli, rubeola Measles is a highly contagious, vaccine-preventable infectious disease caused by measles virus which can in extreme cases lead to death. Despite vaccines being available many parents are choosing not to vaccinate their children which is leading to a resurgence in the sickness. As the disease is so contagious at least 95% of the population has to be vaccinated in order to achieve herd immunity.