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Related Concept Videos

Models of Health Promotion and Illness Prevention I01:25

Models of Health Promotion and Illness Prevention I

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A model is a theoretical way to understand a concept or an idea. Models can overcome barriers to health regardless of diverse economic and cultural backgrounds. In addition, models make the task easier by providing different ways to approach complex issues. There are two major health promotion models: the health belief model and the health promotion model.
The health belief model (HBM) attempts to predict health-related behavior in specific belief patterns. According to the HBM, a person's...
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Antimicrobial Effectiveness01:28

Antimicrobial Effectiveness

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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...
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Models of Health Promotion and Illness Prevention II01:18

Models of Health Promotion and Illness Prevention II

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The person's health status fluctuates continually, varying from being in good health to becoming ill and returning to being healthy. To understand the concept of illness prevention, there are two models. First, the health-illness continuum model is a graphic representation of an individual's wellness. It states that a person is considered healthy in the absence of physical disease and the presence of good emotional health.
The agent-host-environment model states that disease results...
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Defense Mechanism Against Infection01:26

Defense Mechanism Against Infection

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Natural flora, body system defenses, and inflammation are natural barriers of the body against infectious agents regardless of previous exposure. Normal floras of the human body refer to the microbial population that colonizes the skin and mucous membranes.
In addition, many body organ systems have unique defenses against infection. The skin is an intact, multilayered surface preventing invasion by microorganisms unless impaired. Mucous membranes lining the mouth, nose, and eyelids are barriers...
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Modeling in Therapy01:26

Modeling in Therapy

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Modeling, a key technique in therapy, uses observational learning to help clients acquire and practice new skills by watching therapists demonstrate desired behaviors. This approach, rooted in Albert Bandura's concept of vicarious learning, plays a significant role in therapeutic interventions for various psychological conditions, including social anxiety, ADHD, and depression.
Participant Modeling
Participant modeling involves therapists demonstrating calm and effective behaviors in...
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Healthcare Associated Infections II: Preventive Measures01:22

Healthcare Associated Infections II: Preventive Measures

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Essential infection prevention measures are based on the knowledge of the infection chain, the modes of transmission in healthcare settings, and the use of the best practices in all healthcare settings. Compulsory public reporting of healthcare-associated infection rates is needed to allow individuals and the community to make informed choices regarding selecting a healthcare facility.
The best practices for preventing healthcare-associated infections include hand hygiene, patient risk...
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Related Experiment Video

Updated: Oct 28, 2025

Murine Oropharyngeal Aspiration Model of Ventilator-associated and Hospital-acquired Bacterial Pneumonia
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"Five-Early" Model: The Magic Weapon against COVID-19.

Qingjie Yi1,2, Wei Fang1,3, Chunhui Lang1,4

  • 1Chongqing University Three Gorges Hospital, Chongqing 404100, China.

Iranian Journal of Public Health
|July 16, 2021
PubMed
Summary

Mild COVID-19 patients show faster diagnosis and recovery times compared to severe cases. These findings support early detection and intervention strategies for better epidemic control.

Keywords:
COVID-19Current situationInvestigation“Five-early” model

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Area of Science:

  • Epidemiology
  • Infectious Diseases
  • Public Health

Background:

  • COVID-19 (2019 novel coronavirus disease) presents challenges in epidemic control due to its rapid transmission and concealed onset.
  • Understanding clinical characteristics aids in managing the pandemic's impact.

Purpose of the Study:

  • To compare the clinical data of mild and severe COVID-19 patients.
  • To identify key differences in disease progression and recovery between patient groups.

Main Methods:

  • Retrospective study of 226 COVID-19 pneumonia patients at Chongqing University Three Gorges Hospital.
  • Collection and comparison of clinical data including symptoms, diagnosis time, treatment initiation, nucleic acid conversion, and hospitalization duration.

Main Results:

  • Fever, cough, sore throat, poor appetite, and fatigue were common symptoms.
  • Mild cases had significantly shorter diagnosis times (4.96 days) than severe cases (7.63 days).
  • Mild patients also experienced shorter treatment initiation times and faster nucleic acid conversion to negative.

Conclusions:

  • Findings provide a quantitative basis for the "five-early" model (early detection, screening, diagnosis, isolation, and recovery).
  • Optimizing the "five-early" model through joint efforts is crucial for effective epidemic prevention and control.