Scientists have invented a unique GPS system that can spy on people

Swedish scientists have introduced the Microbiome Geographic Population Structure (mGPS) tool, which allows you to determine where a person has been based on the samples of bacteria they left behind. The technology, which uses artificial intelligence, can open new horizons in forensics and the medical field.

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The team, led by biologist Eran Elhaik from Lund University, collected more than 4 thousand microbiome samples from different countries and environments. The neural network was trained to determine the geographic origin of bacteria with an accuracy of up to 82%, as demonstrated by samples taken from subway stations in Hong Kong. The technology is able to distinguish microbiomes even within one meter, as in the case of samples from New York.

Elhaik noted that mGPS opens a new era in forensics, as it is planned to create microbiome maps of entire cities. This will allow tracking the spread of diseases and using the data in investigations.