The growing threat of antimicrobial resistance (AMR) has become one of the most pressing public health concerns. According to the World Health Organization (WHO), bacterial antimicrobial resistance (AMR) causes about 1.27 million deaths every year and contributes to about 4.95 million deaths worldwide. If no action is taken, the WHO and international health organizations have projected that AMR could kill more than 10 million people a year by 2050, surpassing the number of deaths from other major diseases. Despite repeated public awareness, antibiotics continue to be misused in viral diseases such as cold, flu, COVID-19, and dengue. This unnecessary use contributes to antibiotic resistance, making bacterial infections difficult, and sometimes impossible, to treat.
Concept in simple words
People often confuse bacteria with viruses, thinking that antibiotics can treat both. In fact, they are very different.What are bacteria?Bacteria are single-celled organisms. They have their own cellular systems, which allow them to grow, reproduce, and survive independently in the right environment.
- Most bacteria are either harmless or beneficial.
- Some help with digestion and vitamin production.
- Some cause diseases such as tuberculosis, typhoid, pneumonia, and urinary tract infections.
What are viruses?Viruses are not considered living organisms because they cannot live or reproduce on their own.This problem is mainly caused by:
- Genetic (DNA or RNA)
- A protective protein coat
- Sometimes outside the lipid envelope
Unlike bacteria, viruses must enter a host cell and hijack its machinery to make copies of themselves.Common viral infections include:
- Influenza
- COVID 19
- Measles
- Smallpox
- HIV
- Dengue
- Liver
Why antibiotics fail against virusesAntibiotics target structures or mechanisms found only in bacteria, such as:
- Structure of the cell wall
- Protein synthesis
- DNA replication
- Metabolic pathways
Viruses are not produced by bacteria. Since they reproduce using human cells, antibiotics have no harmful effects, making them ineffective against viral infections.Instead, viral infections are treated using:
- Antiviral medicine (for some viruses)
- Vaccination (to prevent disease)
- Supportive care, such as hydration and fever management
How it works
Understanding how bacteria and viruses interact explains why antibiotics work with one but not the other.How bacteria multiplyBacteria reproduce through binary fission, where one bacterial cell divides into two identical daughter cells. During this time:
- Bacterial DNA replicates.
- The cell grows.
- The cell wall forms the dividing walls.
- Two new bacterial cells are formed.
Antibiotics interfere with one or more of these processes, inhibiting the growth of bacteria or killing the bacteria.How viruses multiplyViruses cannot reproduce by themselves. Their life cycle includes:
- Attached to the host cell.
- Enter the cell.
- Release of genetic viruses.
- Replication using the host cell system.
- The gathering of new viruses.
- Released to infect other cells.
Since viruses depend almost exclusively on human cells to replicate, drugs must target viral proteins without harming healthy human cells, a much more difficult task than treating bacterial infections.
What is Antimicrobial Resistance (AMR)?
Antimicrobial resistance occurs when microbes change so that drugs can no longer kill them effectively.AMR includes resistance in:
- Bacteria (resistant to antibiotics)
- Viruses (antiviral resistance)
- fungus (antifungal resistance)
- Germs (antiparasite resistance)
The most common and dangerous process is antibiotic resistance.How antibiotics persistWhen antibiotics are used:
- Most bacteria die.
- A few bacteria that are not naturally sensitive to energy survive.
- Resistant bacteria multiply.
- They can also transfer genes that fight against other bacteria.
Over time, antibiotics become ineffective.Big reasons
- Use of antibiotics for viral infections
- Self-medication
- Inadequate antibiotic education
- Overwriting
- Use of antibiotics in livestock and poultry
- Poor hygiene and disease prevention
What are the consequences?
- Long hospital stay
- Increase in medical expenses
- A great death
- The most difficult surgeries
- Reducing the effectiveness of chemotherapy and organ transplantation
WHO considers AMR to be one of the greatest global threats of the 21st century.
Important Institutions, Laws or Agreements
The World Health Organization (WHO)It coordinates the Global Action Plan on Antimicrobial Resistance and promotes the prudent use of antibiotics. The organization also promotes deafness screening worldwide.Food and Agriculture Organisation (FAO)It opposes the use of antibiotics in agriculture and animal husbandry.World Health Organization (WOAH)They develop standards for the use of antibiotics in animals.United Nations (UN)In 2016, the UN General Assembly adopted a political declaration recognizing AMR as a major global threat that requires international cooperation.Global Antimicrobial Resistance and Use Surveillance System (GLASS)It has been established by the WHO to collect standardized global data on antimicrobial resistance and antibiotic use.
Indian English
India has the highest incidence of infectious diseases in the world and is also one of the largest consumers of pesticides.Great dealsNational Action Plan on Antimicrobial Resistance (NAP-AMR)Founded in 2017, it focuses on:
- Public awareness
- Monitoring
- Prevention of disease
- Appropriate use of antibiotics
- Research and innovation
Red Line CampaignMedicines containing antibiotics have a red line standing on their packaging, reminding people that the medicine should be taken according to the doctor’s instructions.Schedule H and Schedule H1 DrugsThese antibiotics cannot be sold legally without a valid license.
National Center for Disease Control (NCDC)- Coordinates AMR monitoring across India.
Indian Council of Medical Research (ICMR)
He oversees the world’s research and development of resistant bacteria and promotes antibiotic stewardship in hospitals.Challenges in India
- Easy access to antibiotics
- Self-medication
- The prevalence of infectious diseases
- In some areas there is no sanitation
- Use of antibiotics in animal husbandry
Prelims point box
The Most Important QuestionQ. Antimicrobial resistance has been identified as one of the major public health problems of the 21st century. Discuss the causes, consequences and measures taken globally and in India to combat antimicrobial resistance.MCQs and Answers1. Antibiotics are very effective against:A. VirusesB. MushroomsC. BacteriaD. BeastsAnswer: C2. Which of the following is increased by binary fission?A. VirusesB. BacteriaC. PrionD. ViroidAnswer: B3. Which organization founded GLASS?A. UNESCOB. WHOC. UNICEFD. FAOAnswer: B4. The Red Line Campaign in India is associated with:A. Donating bloodB. VaccinationC. Appropriate use of medicationD. To raise awareness about HIVAnswer: C5. Which words are correct?A. Antibiotics destroy the envelopes of viruses.B. Viruses have their own metabolism.C. Antibiotics work against bacteria that are not viruses.D. Viruses divide by binary fission.Answer: CFive Points to Remember
- Antibiotic – A drug that kills or inhibits the growth of bacteria.
- Virus – A small virus that can reproduce inside living cells.
- Binary Fission – The process by which bacteria divide into two identical cells.
- Antimicrobial Resistance (AMR) – The ability of pathogens to resist the effects of drugs designed to kill them.
- Antibiotic Stewardship – Coordinated efforts to ensure that antibiotics are used appropriately to maintain their effectiveness.
FAQs1. Can antibiotics treat viral fever?No. Antibiotics do not work against viruses. Most viral infections require supportive care unless specific antiviral drugs are available.2. Why do doctors sometimes give us antibiotics when we get sick?If there is evidence or a high risk of a secondary bacterial infection, antibiotics may be prescribed to treat the bacterial infection, not the virus itself.3. What is the difference between antibiotics and antivirals?Antibiotics fight bacteria by interfering with the bacteria’s structure or function, while antivirals inhibit certain parts of the virus.4. Why is drug abuse dangerous?Misuse contributes to antibiotic resistance, making future bacterial infections more difficult to treat and increasing the risk of serious illness and death.5. How can antimicrobial resistance be prevented?AMR can be reduced by using antibiotics only when indicated, completing all treatments, maintaining good hygiene, receiving vaccinations, preventing infection, and avoiding the inappropriate use of antibiotics in humans and animals.