What is Antibiotic Resistance (AMR)?

Antibiotic resistance occurs when bacteria change so that antibiotics designed to kill them or curb their growth no longer work. It is the bacterial component of antimicrobial resistance (AMR) — the wider phenomenon covering bacteria, viruses, fungi and parasites that stop responding to antimicrobial medicines (WHO fact sheet, updated 21 November 2023). When resistance spreads, standard treatments fail, infections persist and the risk of severe illness, disability and death rises. Routine surgeries, cancer chemotherapy and organ transplants — all of which rely on effective antibiotics — become far more dangerous.

Key Features and Drivers

Resistance evolves naturally, but human activity is the accelerant. According to WHO, the misuse and overuse of antimicrobials in humans, animals and plants are the main drivers of drug-resistant pathogens. Other contributors include poor infection prevention in healthcare settings, over-the-counter sale of antibiotics, incomplete treatment courses, use of antibiotics as growth promoters in livestock, and antibiotic residues in environmental effluents. Because the problem cuts across human, animal, agricultural and environmental health, the accepted response framework is "One Health."

Global and Indian Status

IndicatorFigureSource / Year
Deaths directly attributable to bacterial AMR (global)~1.27 millionLancet/GBD, 2019
Deaths associated with bacterial AMR (global)~4.95 millionLancet/GBD, 2019
Forecast deaths directly attributable to AMR~39 millionLancet/IHME, 2025–2050
Deaths directly attributable to AMR in India~2,97,000IHME, 2019

Forecasts published in The Lancet (2024) project that South Asia will see the highest absolute AMR death toll, with around 11.8 million deaths directly due to AMR between 2025 and 2050 (Wellcome/IHME). Improving infection care and equitable access to antibiotics could prevent tens of millions of these deaths.

India's Policy Response

  • National Action Plan (NAP-AMR): First released in April 2017 by the Union Ministry of Health and Family Welfare, aligned with the WHO Global Action Plan, structured around six strategic priorities.
  • NAP-AMR 2.0 (2025–2029): Launched on 18 November 2025 during World AMR Awareness Week, extending the One Health approach across human, animal, agriculture and environment sectors, with emphasis on surveillance, stewardship and infection control.
  • Schedule H1: Effective from 1 March 2014, this regulation restricts over-the-counter sale of specified antibiotics (including certain cephalosporins and carbapenems), requiring prescription records.
  • Red Line Campaign: Marks prescription-only antibiotic packs with a vertical red line to discourage self-medication.

UPSC Angle

For Prelims, focus on factual anchors: the WHO "One Health" framing, Schedule H1, the Red Line Campaign, and the distinction between AMR and antibiotic resistance. For Mains (GS3 health/science-tech, with GS2 governance overlap), build an answer around drivers, the One Health response, India's NAP-AMR 2.0, and global cooperation. This is a foundational, high-yield topic that links to public health, drug regulation and emerging biological threats.