Measles is a viral illness that poses a potentially fatal threat to health all over the world, especially for children. Due to the increase in measles outbreaks in the last few years, and the ever-growing popularity of anti-vaccine groups, it needs to be determined whether or not vaccine refusal is ethical, as it is an important issue that can have an effect on parental decision-making. A brief review is presented on the Measles Mumps Rubella (MMR) vaccine and recent outbreaks, with special attention to the role of anti-vaccine movements. Diverse bioethical perspectives are discussed to answer this issue. Informed consent is advised for all settings and mandatory