Antimicrobial resistance in India is driven by antibiotic overuse, delayed diagnosis, hospital transmission and weak infection control, increasing mortality and treatment costs.
Antimicrobial Resistance in India Latest News
A new study by the Indian Council of Medical Research (ICMR) has found that infections caused by antibiotic-resistant Gram-negative bacteria are deadlier and costlier to treat than infections caused by drug-susceptible strains.
India’s antimicrobial resistance (AMR) crisis goes well beyond antibiotic overuse. Delayed diagnosis, hospital transmission and weak infection control are equally responsible.
Understanding Gram-Negative Bacteria and Carbapenems
Gram-negative bacteria have a thin peptidoglycan cell wall and an outer membrane containing lipopolysaccharides. They stain pink or red during Gram staining.
They cause infections in the lungs, urinary tract, wounds and bloodstream. Common hospital pathogens in this group include Escherichia coli (E. coli), Klebsiella pneumoniae, Acinetobacter baumannii and Pseudomonas aeruginosa.
Carbapenems are a powerful class of antibiotics used for serious infections. They are often the last line of defence.
When bacteria become resistant to carbapenems, doctors are left with very few effective medicines.
Key Findings of the ICMR Study
The study was conducted by ICMR’s antimicrobial resistance surveillance network across 20 tertiary-care hospitals between April 2022 and April 2025.
Mortality was consistently higher among patients with carbapenem-resistant infections across all four major pathogens. The relative risk of death was 1.16 to 1.43 times higher.
More than 61 per cent of Gram-negative infections in the study were carbapenem-resistant.
Experts call carbapenem resistance a major threat to patient survival, especially in severe and bloodstream infections. However, they caution against treating resistance as an entirely independent cause of death.
Severity of illness, timing of treatment, source control and patient factors also shape outcomes. Resistance is best understood as an important marker of excess mortality.
The study also points to healthcare-associated transmission, invasive devices, recent surgery, antibiotic pressure and gaps in infection prevention and diagnosis.
AMR is the product of a complex interaction among these factors. It cannot be reduced to antibiotic overuse alone.
The Hidden Economic Burden
The study’s cost figures are conservative. Researchers looked only at the cost of antibiotics available under the Jan Aushadhi scheme.
They excluded ICU charges, bed costs, diagnostics, procedures, supportive care and consultation fees.
Even on this narrow measure, antibiotic costs for resistant infections were 1.1 to 2 times higher. The true burden on patients, families and the healthcare system is likely far greater.
A Signal, Not a Verdict, on Newer Drugs
The antibiotic Ceftazidime-avibactam was linked to better outcomes in some resistant E. coli and K. pneumoniae infections, including bloodstream infections. Experts describe this as an important signal rather than proof of superiority.
The study was observational and could not fully adjust for disease severity, timing of therapy or resistance mechanisms.
The results reflect real-world treatment patterns in India, not a definitive drug ranking.
This underlines the need for better diagnostics to guide treatment instead of simply escalating to newer, broader antibiotics.
Antibiotics Cannot Replace Infection Prevention
More than 85 per cent of bloodstream infections in the study were healthcare-associated. This shows that Indian hospitals are relying on antibiotics to fix what is essentially an infection-prevention failure.
Hospitals must place infection prevention and control at the centre of their AMR response.
This includes hand hygiene, prevention of device-associated infections, appropriate insertion and early removal of invasive devices, environmental cleaning, surgical infection prevention and surveillance of healthcare-associated infections.
Antimicrobial stewardship is equally vital. The answer to rising resistance is not stronger antibiotics.
It is to prevent infections, diagnose them quickly and use the narrowest effective antibiotic for the shortest appropriate duration.
The Way Forward: An Integrated Response
First, India must move from isolate-based surveillance to integrated surveillance that links laboratory results with patient outcomes, mortality and treatment.
Second, faster and more accurate diagnostics are needed to distinguish bacterial from non-bacterial illness and detect resistance early.
Third, antimicrobial stewardship must become routine clinical practice, not an optional programme.
Fourth, infection prevention must receive as much attention as prescribing.
Finally, India needs responsible access to newer antimicrobials, backed by stewardship, so these drugs remain effective when truly needed.
Conclusion
The ICMR study confirms that carbapenem resistance is a serious threat to survival and a heavy economic burden. India’s AMR crisis cannot be solved by discovering a new antibiotic each time an old one fails.
Preventing infections, diagnosing them early and preserving existing antibiotics must become the core of national health policy.
Source: IE
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