Health authorities confirm death of a woman due to measles-induced pneumonia, in Clallam County, Washington. The link is not spotted until a post-mortem examination because the woman lacked some common symptoms, such as a rash. The woman had been hospitalised for several health conditions in the spring and was on medication that had weakened her immune system. An autopsy concludes the cause of death is pneumonia due to measles. Washington officials say her death is not linked to Disneyland incident.
This tragic situation illustrates the importance of immunising as many people as possible to provide a high level of community protection against measles.