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Why antibiotics are losing their power
- Mar 22
- 2 min read
By Lucy Nguyen
For decades, antibiotics have been one of medicine’s greatest achievements. Infections that once claimed millions of lives became manageable, enabling safe surgeries, chemotherapy and routine medical procedures. However, this success has contributed to a growing global crisis: antibiotics are losing their effectiveness.
Antibiotics work by killing bacteria or preventing them from multiplying. However, bacteria evolve extremely fast so when antibiotics are used excessively or incorrectly, some bacteria survive due to natural genetic variations and mutations. These resistant bacteria then multiply, passing on their survival traits. Over time, entire strains of bacteria can become resistant to drugs that once destroyed them.
A major driver of antibiotic resistance is overuse. Antibiotics are often prescribed for viral infections such as the common cold or flu, even though antibiotics have no effect on viruses. In some regions, antibiotics may be purchased without strict regulation, increasing the risk of misuse. Patients may also stop treatment early once they feel better, allowing partially resistant bacteria to survive and adapt. The World Health Organization has identified antimicrobial resistance (which includes antibiotics) as one of the top global public health threats. Infections that were once easily treated are becoming harder and more expensive to cure. Without effective antibiotics, even minor injuries or routine surgeries could become life-threatening.
At the same time, the development of new antibiotics has slowed down. Creating new drugs is scientifically complex and financially risky, leading many pharmaceutical companies to prioritise treatments for chronic diseases instead. As resistance rises and innovation lags, the gap between evolving bacteria and available treatments continues to widen.
Antibiotic resistance does not render medicine powerless, but it exposes its limits. Stricter prescribing practices and stronger public awareness of using antibiotics correctly according to prescriptions are critical to preserving the effectiveness of these life-saving drugs.
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