Study of Antimicrobial Resistance (AMR) in Shigella spp. in India

Maulikkumar D Vaja1, Heenaben A Chokshi2, Janak J Jansari2

  • 1Department of Pharmaceutical Chemistry, Saraswati Institute of Pharmaceutical Sciences, Near Hotel Anjali Inn, Dhanap, India.

Insights

Antimicrobial resistance (AMR) in Shigella infections is rising in India, complicating treatment and increasing global health risks. Improved surveillance and new therapies are crucial for managing this growing challenge.

Area of Science:

  • Microbiology
  • Epidemiology
  • Public Health

Background:

  • Antimicrobial agents are vital for treating infectious diseases in humans and animals.
  • Antimicrobial drug resistance (AMR) is diminishing the effectiveness of antibiotics, posing a significant global health threat.
  • Shigella spp. are a major cause of diarrheal disease and mortality worldwide, with antibiotic treatment being crucial for management.

Purpose of the Study:

  • To provide a retrospective analysis of AMR in Shigella infections in India.
  • To highlight the increasing trend of antimicrobial resistance in Shigella isolates.
  • To emphasize the need for improved surveillance and novel therapeutic strategies.

Main Methods:

  • Retrospective analysis of epidemiological data on Shigella infections in India.
  • Review of existing literature on antimicrobial resistance patterns in Shigella.
  • Examination of mechanisms contributing to AMR.

Main Results:

  • A significant rise in antimicrobial resistance in Shigella infections in India has been observed.
  • Broad-spectrum antibiotic resistance in Shigella is increasing, making infections harder to treat.
  • Mechanisms of resistance include reduced cell permeability, efflux pumps, and antibiotic-degrading enzymes.

Conclusions:

  • AMR in Shigella infections in India is a growing problem with global implications.
  • There is an urgent need for enhanced surveillance of Shigella infections and the development of new treatment approaches.
  • Addressing AMR requires a multifaceted, cross-sectoral approach involving humans, animals, food, and the environment.

Related Concept Videos

Antimicrobial Effectiveness01:28

Antimicrobial Effectiveness

The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
Development of Antibiotic Resistance01:30

Development of Antibiotic Resistance

Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
Microbiota Modulation by Antibiotics01:21

Microbiota Modulation by Antibiotics

Antibiotics have revolutionized modern medicine by saving countless lives from bacterial infections. However, their widespread use has inadvertently harmed the delicate balance of the human gut microbiota. The gut microbiota, a complex community of bacteria, archaea, viruses, and fungi, plays a vital role in regulating metabolism, immune responses, and maintaining intestinal health. Antibiotics, especially broad-spectrum types, disrupt this ecosystem by eradicating both harmful and beneficial...
Mechanism of Antibiotic Resistance in MRSA01:25

Mechanism of Antibiotic Resistance in MRSA

Antibiotic resistance in bacteria arises when microorganisms evolve the ability to withstand drugs designed to kill them or inhibit their growth, rendering once-effective treatments useless. This phenomenon, driven by genetic change and selection under antibiotic exposure, poses a profound threat to modern medicine. Mechanisms include drug-inactivating enzymes (e.g., β-lactamases), efflux pumps that eject antibiotics, mutations altering antibiotic targets, decreased drug uptake, and acquisition...
Clinical Significance of Antibiotic Resistance01:25

Clinical Significance of Antibiotic Resistance

Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...