I began by looking into vaccine hesitancy in Nigeria and behaviour change approaches specific to driving vaccine uptake. This was a mixture of desk research into existing studies and vaccination programmes, and discovery research through our in-country teams.

This led to loads of great learnings, including the 3 Cs of Vaccine Hesitancy, which I used as the basis for an ideation workshop.

Beginning with the clinical decision support, I set about making the process for documenting vaccines as simple and quick as possible. Our users are functioning in a busy, noisy environment, so giving them a simple process was important for usage. We have a mantra of Taps, Not Types. Every keyboard interaction is time consuming and cumbersome. To aid clinicians, I added quick actions to point them in the right direction, as well as exposing a clear summary of the patient's vaccine status up front.

There were many complex cases during this process. One particularly challenging aspect was making sure this system was suitable for the reality of our market. Full doses, particularly for Penta, aren't always available. So the system needed to be flexible enough to handle these instances.

During the design phase we ran quick usability research with users in facilities. This gave some immediate feedback on content and vaccine naming conventions, as well as more optimisations for future iterations.

The end user journey contained a number of features to improve the efficiency and quality of clinical care. There is a clear vaccination status shown upfront when the patient record is loaded, with buttons to add due vaccinations quickly. There are clinical nudges built into the documentation process to catch any incorrect vaccinations or missed documentation.

We saw positive metrics for both documentation efficiency and in uptake in Penta 3, and received a lot of positive user feedback about the improved ease of use.