Fig. 1From: mHAT app for automated malaria rapid test result analysis and aggregation: a pilot studyA The number of mobile phone subscriptions per 100 people in World Bank low and middle-income countries from 1990 to 2017. Arrows represent important developments in the telecommunications landscape of Zambia. B Malaria admissions and deaths at the Macha Hospital Children’s Ward after the initiation of a reactive screen and treat campaign in 2002–2003Back to article page