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Related Concept Videos

Development of Antibiotic Resistance01:30

Development of Antibiotic Resistance

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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...
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Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
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The pathophysiology of pneumonia involves the following steps:
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Pneumonia IV: Management01:28

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The treatment of pneumonia varies based on its severity and the causative pathogen. Here is a structured approach to managing pneumonia, integrating pharmaceutical and supportive care strategies.
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Resistivity01:22

Resistivity

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When a voltage is applied to a conductor, an electrical field is generated, and charges in the conductor feel the force due to the electrical field. The current density that results depends on the electrical field and the properties of the material. In some materials, including metals at a given temperature, the current density is approximately proportional to the electrical field. In these cases, the current density can be modeled as:
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Related Experiment Video

Updated: Feb 11, 2026

Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes
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Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes

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Antibiotic resistance in Streptococcus pneumoniae

A Tomasz1

  • 1Rockefeller University, New York, New York 10021, USA.

Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America
|January 1, 1997
PubMed
Summary

Multidrug-resistant pneumococci emerged in the late 1970s, challenging penicillin susceptibility. Effective surveillance and collaboration are crucial to combat the spread of resistant bacterial strains.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Antimicrobial Resistance

Background:

  • * Streptococcus pneumoniae (pneumococci) were historically highly susceptible to penicillin.
  • * Since the late 1970s, there has been a significant increase in reports of multidrug-resistant pneumococcal strains.

Purpose of the Study:

  • * To highlight the evolving challenge of multidrug-resistant pneumococci.
  • * To emphasize the need for robust surveillance and interdisciplinary collaboration.

Main Methods:

  • * This study is a review and synthesis of existing literature on pneumococcal resistance patterns.
  • * Analysis of historical data on penicillin susceptibility and resistance emergence.

Main Results:

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  • * Emergence and rapid spread of multidrug-resistant pneumococcal clones.
  • * Identification of new resistance mechanisms and variants.

    • Conclusions:

    • * The rise of resistant pneumococci necessitates enhanced surveillance systems.
    • * Strong collaboration between healthcare professionals, researchers, industry, and public health agencies is vital.