Recent measles cases in Australia underscore the need for high vaccination rates to prevent outbreaks.

Professor Joshua Davis, Senior Staff Specialist in Infectious Disease at Newcastle’s John Hunter Hospital, and Deputy Director of the Hunter Medical Research Institute’s Infection Research Program, discusses what measles is, why it is so contagious, why there is an increase in cases despite Australia reaching herd immunity in 2014, and why vaccinations are so effective in controlling the disease.

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