Samuel Mugisha has been very busy since we first shared his story in 2019. Back then, Samuel was a university student from Uganda who was inspired to create a mobile Immunization Calculator app to help keep track of children’s vaccinations after he saw his community using handwritten paper cards that were difficult to read and keep intact. Samuel kicked his idea into gear by forming a team with friends from GDSC Muni University, and they ended up winning the 2019 Google Developer Student Clubs Solution Challenge. Read more.