They’re invisible, fast-spreading, and nearly unstoppable — and they’re killing millions every year.
Acinetobacter Baumannii
This hospital-acquired superbug preys on critically ill patients. It causes severe infections such as pneumonia and sepsis and can survive on surfaces for days. Its resistance to nearly all antibiotics makes treatment extremely difficult and increases mortality rates dramatically.
Escherichia Coli
Commonly known as E. coli, this bacterium often starts with urinary tract infections but can escalate to life-threatening bloodstream infections. With rising resistance, especially in older patients, even routine cases can become deadly.
Klebsiella Pneumoniae
This bacterium spreads rapidly in hospitals and intensive care units. Known for causing pneumonia and septicemia, it resists powerful antibiotics by blocking their entry and breaking them down — often leaving doctors with no effective treatment options.
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Mycobacterium Tuberculosis
The cause of tuberculosis is still one of the world’s top infectious killers. Drug-resistant strains, especially in low-income countries, make treatment long, toxic, and often unsuccessful. This bacterium damages the lungs and can silently spread for months.
Staphylococcus Aureus
Staph aureus, particularly the MRSA strain, turns from harmless skin bacteria into a lethal threat when it enters the bloodstream. It’s notorious for hospital outbreaks and causes infections in bones, joints, and vital organs.
Pseudomonas Aeruginosa
This pathogen attacks those with weakened immune systems, especially in ICUs. It forms biofilms that shield it from antibiotics and the immune system. It’s linked to respiratory infections, burns, and urinary tract infections.
Enterococcus Faecium
Normally harmless in the gut, this bacterium becomes dangerous when it enters the blood or wounds. Resistant strains, known as VRE (Vancomycin-Resistant Enterococci), are spreading in hospitals and are very hard to treat.
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Neisseria Gonorrhoeae
The bacterium behind gonorrhea is evolving rapidly. Some strains now resist nearly all available antibiotics, raising fears that this once-easily-treated STD could become untreatable.
Salmonella Typhi
Responsible for typhoid fever, Salmonella Typhi spreads through contaminated food and water. Resistant strains make treatment more complex and increase the risk of organ failure or death in vulnerable populations.
Helicobacter Pylori
Living in the stomach lining, H. pylori is linked to ulcers and even gastric cancer. It’s incredibly widespread and growing more resistant to antibiotics, forcing doctors to rely on complex treatment combinations that don’t always work.
This article is based on information from Illusteret Videnskab
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