Global and local variations in antimicrobial susceptibilities and resistance development in the major respiratory

Celia Alpuche1, Javier Garau, Victor Lim

  • 1Instituto de Diagnóstico y Referencia Epidemiológicos, Secretaria de Salud, Mexico. celiam@servidor.unam.mx

Insights

Antibiotic resistance in key respiratory pathogens like Streptococcus pneumoniae is a growing global threat. Local resistance data is crucial for guiding treatment and developing new antibiotics to combat infections.

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Public Health

Background:

  • Acute respiratory tract infections are the leading global infectious cause of death.
  • Increasing antibiotic resistance in Streptococcus pneumoniae, Moraxella catarrhalis, and Haemophilus influenzae is a worldwide concern.
  • Surveillance programs are essential for monitoring the spread of resistance.

Purpose of the Study:

  • To highlight the growing problem of antibiotic resistance in major bacterial respiratory pathogens.
  • To emphasize the need for local antibiotic resistance prevalence data.
  • To guide empirical prescribing and identify areas with a high medical need for new antimicrobial agents.

Main Methods:

  • Review of global surveillance data on antibiotic resistance patterns.
  • Analysis of susceptibility rates of key respiratory pathogens.
  • Geographical and temporal trend analysis of resistance.

Main Results:

  • Significant variations in antibiotic susceptibility rates observed globally and over time.
  • Identification of Streptococcus pneumoniae, Moraxella catarrhalis, and Haemophilus influenzae as primary targets of resistance.
  • Demonstration of the critical need for localized resistance data.

Conclusions:

  • Local antibiotic resistance data is vital for effective empirical prescribing.
  • Understanding resistance patterns helps identify urgent needs for novel antimicrobial therapies.
  • Continuous surveillance is necessary to combat the evolving threat of antibiotic resistance.

Related Concept Videos

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...
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 of the Respiratory Tract01:29

Microbiota of the Respiratory Tract

The human respiratory tract, comprising the upper and lower segments, serves as a critical interface with the external environment. The upper respiratory tract (URT)—including the nostrils, sinuses, pharynx, and oropharynx—is heavily colonized by microbes, while the lower respiratory tract (LRT), composed of the larynx, trachea, bronchi, and lungs, was long thought to be sterile. However, recent molecular studies have revealed that the lungs are not devoid of microbes but act more like...
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...
Defense Against Bacterial Pathogens01:31

Defense Against Bacterial Pathogens

The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
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...