My journey as an entrepreneur began, like many other entrepreneurs, with the realisation of a major and entrenched problem. In 2014, while working in the Medical Devices team at the World Health Organisation (WHO), I became aware of the magnitude of the  global childhood pneumonia challenge. I was shocked that in the 21st century, a treatable condition still takes the lives of 1 million young children every year and is the number one killer of children under five years old globally.