Measles is one of the most contagious of all infectious diseases and less than 15 minutes’ exposure can result in infection for individuals who have not been fully vaccinated or who lack natural immunity. It is spread by minute aerosol droplets. Complications occur frequently and range from mild to life threatening. The prevention and control of measles is taken seriously by the World Health Organization and public health authorities in the UK. Public Health professionals should have a high level of awareness of measles and its risks, to help identify new cases and implement measures to prevent and control spread.