This week began on Monday with the 90th birthday of Dr Sam Katz, who helped invent the measles vaccine that has since saved millions of lives (estimates in the graph above). The DRC also approved the use of the candidate Ebola vaccine, in a bid to control its latest outbreak. The Washington Post turned the microscope on Minnesota’s ongoing measles outbreak, and the growing cholera outbreak in Yemen drew concern and outrage. Italy’s measles outbreak provided the foundation for a discussion about the nature of global health security and the importance of vaccination.

A new report in the Lancet showed that global childhood diarrhoea deaths are decreasing, but there’s still more vaccine action needed to prevent one of the major causes of 500,000 deaths every year.

Finally, an advocate from Ethiopia took a look back at African Vaccination Week in his country, and the way immunisation is being fused with local culture.