AMR Significantly Exacerbates the Challenge of Treating Infections in Post-Conflict and Disaster Regions
Antimicrobial resistance (AMR) is not a minor concern—it is a critical, life-threatening crisis in post-conflict and disaster zones that directly increases morbidity and mortality by rendering standard treatments ineffective. The evidence unequivocally demonstrates that conflict settings create a perfect storm for AMR proliferation and spread 1.
Why AMR is a Major Threat in These Settings
Pre-existing Vulnerabilities Amplified by Conflict
Even before conflicts begin, many regions have weak antimicrobial stewardship. In Syria, for example, 85% of households used antimicrobials in a 4-week period pre-conflict, with only 43% prescribed by healthcare professionals 1. Conflict doesn't create AMR from nothing—it catastrophically accelerates existing problems 1.
Multiple Conflict-Specific Drivers
The evidence identifies several mechanisms by which conflict exacerbates AMR:
War trauma creates ideal conditions for resistant infections:
- Heavy weapons and explosive devices cause deeply contaminated, penetrating wounds 1
- Inappropriate use of internal fixators in contaminated wounds by untrained staff increases deep bone infections 1
- Prolonged antibiotic use without microbiological guidance for ventilator-associated pneumonia following blast injuries 1
Healthcare system collapse eliminates infection control:
- Hospitals built underground to avoid targeting lack natural ventilation and sunlight 1
- Absence of sterilization equipment and disinfectants 1
- Exodus or death of trained microbiologists and infectious disease specialists 1
- Only one board-certified microbiologist remaining in Syria during conflict 1
Surveillance becomes impossible:
- Few functioning microbiology laboratories outside government-controlled areas 1
- Unknown prevalence of resistant organisms 1
- Inability to perform bacterial surveillance leads to empiric broad-spectrum antibiotic overuse 1
The Documented Resistance Burden
Recent surveillance data from conflict zones reveals alarming resistance rates:
In Ukraine (2023-2024):
- ~60% of verified K. pneumoniae strains carried metallo-β-lactamases conferring near-pan resistance to β-lactams 2
- 84.6% of isolates showed multidrug resistance 3
- Carbapenem-resistant organisms cause up to 60% of healthcare-associated infections 4
In the Eastern Mediterranean Region:
- Carbapenem resistance in Acinetobacter spp. exceeded 65% across all groups, peaking at 83.38% in fragile zones 5
- Third-generation cephalosporin-resistant E. coli reached 76.34% in conflict zones 5
- MRSA exceeded 70% in conflict zones 5
Clinical Consequences for Morbidity and Mortality
The consequences are not theoretical—they are lethal:
- Potential for increased morbidity/mortality from nosocomial transmission 1
- Treatment failures due to resistance render standard empiric regimens ineffective 1
- Smuggling of fake antibiotics further compromises treatment 1
- Overcrowding in refugee camps creates AMR hotspots with ongoing transmission 1, 6
Why Environmental Factors Alone Are Insufficient
While environmental factors (poor sanitation, contaminated water, overcrowding) contribute to infection rates, AMR specifically makes these infections untreatable with standard antibiotics 1. Safe water levels in Syria dropped to less than half of pre-war levels, but the critical issue is that resulting infections are now resistant to multiple drug classes 1.
Common Pitfalls to Avoid
Do not assume AMR is absent because surveillance data is lacking—the absence of data reflects destroyed infrastructure, not absence of resistance 1
Do not rely on pre-conflict antibiograms—resistance patterns shift dramatically during conflict due to changed prescribing patterns and population movements 1
Do not underestimate the role of medical tourism and population displacement in spreading resistant organisms internationally from conflict zones 1
The Bottom Line
AMR in post-conflict and disaster regions represents a convergence of multiple catastrophic failures: destroyed healthcare infrastructure, loss of trained personnel, impossible surveillance, contaminated war wounds requiring prolonged antibiotics, overcrowding, and breakdown of infection control. This is not a minor concern—it is a primary driver of treatment failure and death in these settings 1, 5, 6.