Researchers at DTU in Denmark have created a new tool in the fight against resistant bacteria that, based on 214,000 microbiome samples, can create an overview of the problem across countries, people and environments.

In the future, even a small infection could become life-threatening for people if disease-causing bacteria become resistant to traditional treatment with antibiotics.

Based on 214,000 microbiome samples, DTU researchers have created a freely accessible platform that shows where in the world different types of resistant bacteria are found and in what quantities.


“Such large quantities of data are interesting because we can find new patterns and connections between disease-causing microorganisms and antibiotic resistance. For example, we can see that certain types of antibiotic resistance have very different prevalence in different parts of the world. This knowledge we can use to tailor guidelines on how to combat resistance in different places in the world,” said PhD student Hannah-Marie Martiny from the DTU National Food Institute, one of the institutions behind the new database.

Researchers from the DTU National Food Institute have analyzed 214,000 samples from, among other things, animals, humans, and soil, and organized them in a way that makes it possible for others to use them. The goal is to create a catalogue of resistant bacteria that spans countries, people, and environments.

“You can compare it to a large encyclopedia, like Wikipedia, which collects knowledge from many different sources and organizes it in a way so that everyone can access it. In the same way, we collect data on antibiotic resistance in bacteria and share it with everyone,” Martiny said.

The 214,000 samples together take up almost 300 terabytes and it takes months to analyze it on a high-performance computer.

“By carrying out the initial very resource-intensive analyzes and making them available to everyone, we give researchers all over the world better opportunities to come up with new solutions that can help reduce the incidence of antibiotic resistance. This is in line with the principles about making data useful in Open Science and FAIR,” said DTU National Food Institute’s  Professor Frank Møller Aarestrup.

“The experiences from the Covid19 pandemic have shown us the value of global surveillance data, e.g., to tackle diseases when they threaten to spread beyond a country’s borders,” Professor Aarestrup said.

The work to develop the database is described in the article ’A curated data resource of 214K metagenomes for characterization of the global antimicrobial resistome’, published in the journal PLOS Biology.

The project is supported by the Novo Nordisk Foundation and is part of the Versatile emerging infectious disease observatory (VEO), which has received support from the EU’s Horizon 2020 research and innovation program.