In Kenya, the researchers estimated the distance and length of each phone user’s trip away from home. This information was based on messages to and from the mobile phone carrier’s twelve thousand transmission towers.
The researchers then compared that information to a map showing reports of malaria in different parts of the country. The researchers estimated each user’s probability of being infected in a given area. They also estimated the likelihood that a visitor to that area would become infected.
The result was a picture showing malaria transmission routes starting in Lake Victoria. Caroline Buckee says such evidence could influence malaria control efforts.
“One thing that you could consider is sending text messages to people coming to high risk cell towers, for example, reminding them to use a bed net. And I think those types of approaches are simple but they would hopefully target people who are asymptomatic and unaware that they are carrying parasites.”
She says researchers are investigating using mobile phone records in other areas to help identify malaria transmission routes. A report on the study was published in the Journal Science.
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