| measles outbreak in the republic of the marshall islands, 2003. | measles is a highly contagious viral infection. measles transmission can be prevented through high population immunity (>or=95%) achieved by measles vaccination. in the republic of the marshall islands (rmi), no measles cases were reported during 1989-2002; however, a large measles outbreak occurred in 2003. reported 1-dose measles vaccine coverage among children aged 12-23 months varied widely (52-94%) between 1990 and 2000. | 2006 | 16299123 |