Antimicrobial resistance

Antimicrobial resistance (AMR) is the resistance of a microorganism to an antimicrobial medicine to which it was previously sensitive. It develops when a microorganism mutates or acquires a resistance gene. Resistant organisms (including bacteria, viruses, fungi, protozoa and helminths) are able to withstand attack by antimicrobial medicines such as antibiotics, antivirals and antimalarials, so that standard treatments become ineffective and infections persist and may spread to other people.

Antibiotic resistance in the European Region

Top story

Training course on antimicrobial resistance surveillance and stewardship in Istanbul, Turkey

Antimicrobial resistance (AMR) is a threat to adequate treatment of infectious diseases in individual patients and has been associated with higher morbidity, higher mortality and longer hospital stay, thus having an effect on the individual, but also on society at large.

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World Antibiotic Awareness Week

16-22 November 2015

Key resource

Central Asian and Eastern European Surveillance on Antimicrobial Resistance (CAESAR)

A joint initiative to survey, contain and prevent the emergence and spread of antibiotic resistance in the European Region.

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Data and statistics

25 000

The number of people out of 400 000 who die every year in the European Region due to an infection with a resistant bacterial strain.


More data and statistics