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

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Workshop for strengthening the CAESAR network in the former Yugoslav Republic of Macedonia

A workshop for strengthening the national Central Asian and Eastern European Surveillance of Antimicrobial Resistance (CAESAR) network, and to discuss and practice the use of the European Committee on Antimicrobial Susceptibility Testing (EUCAST) guidelines in microbiological laboratories took place on 10 June 2016.

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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.


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