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Related Concept Videos

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Skin Diseases and Disorders

Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Asthma I: Introduction01:28

Asthma I: Introduction

Asthma is a chronic inflammatory disorder of the airways characterized by variable airflow obstruction and heightened bronchial responsiveness to a wide range of triggers. The underlying inflammation leads to airway swelling, mucus hypersecretion, and smooth muscle constriction, all of which narrow the airway lumen and impede airflow. Clinically, asthma presents with recurrent episodes of wheezing, shortness of breath, chest tightness, and coughing, symptoms that typically vary in intensity and...
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Asthma-I: Introduction

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Acne Infection01:27

Acne Infection

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Global Climate Change01:50

Global Climate Change

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Asthma III: Clinical Manifestations

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Related Experiment Video

Updated: Jul 8, 2026

The Efficacy and Underlying Pathway Mechanisms of ShiDuGao Treatment for Anus Eczema Based on GEO Datasets and Network Pharmacology
12:34

The Efficacy and Underlying Pathway Mechanisms of ShiDuGao Treatment for Anus Eczema Based on GEO Datasets and Network Pharmacology

Published on: January 12, 2024

Is eczema really on the increase worldwide?

Hywel Williams1, Alistair Stewart, Erika von Mutius

  • 1Centre of Evidence-Based Dermatology, University of Nottingham, Nottingham, United Kingdom. hywel.williams@nottingham.ac.uk

The Journal of Allergy and Clinical Immunology
|December 25, 2007
PubMed
Summary

Worldwide childhood eczema prevalence is leveling or decreasing in some developed nations but increasing in many developing countries, particularly among younger children. This trend indicates a complex global shift in eczema epidemiology.

Related Experiment Videos

Last Updated: Jul 8, 2026

The Efficacy and Underlying Pathway Mechanisms of ShiDuGao Treatment for Anus Eczema Based on GEO Datasets and Network Pharmacology
12:34

The Efficacy and Underlying Pathway Mechanisms of ShiDuGao Treatment for Anus Eczema Based on GEO Datasets and Network Pharmacology

Published on: January 12, 2024

Area of Science:

  • Epidemiology
  • Pediatrics
  • Dermatology

Background:

  • Global prevalence of childhood eczema remains uncertain.
  • Investigating secular trends is crucial for understanding disease patterns.

Purpose of the Study:

  • To examine worldwide trends in childhood eczema prevalence.
  • To analyze changes over time in different global regions and age groups.

Main Methods:

  • Utilized data from the International Study of Asthma and Allergies in Childhood (ISAAC) Phases One and Three.
  • Surveyed over 490,000 children aged 6-7 and 13-14 years across 105 centers in 55 countries using validated questionnaires.
  • Defined eczema as an itchy, relapsing, flexural rash and severe eczema by sleep disturbance.

Main Results:

  • Eczema prevalence changes varied by age and region.
  • In 13-14 year olds, prevalence decreased in some developed countries but increased in developing countries.
  • Most 6-7 year olds showed increased eczema symptoms, with similar patterns for severe eczema.

Conclusions:

  • Childhood eczema epidemic appears to be stabilizing or declining in some high-prevalence developed countries.
  • Many developing countries are experiencing significant increases in eczema, especially in younger children.
  • Global eczema trends are complex and regionally diverse.