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Related Concept Videos

Methods of Documentation V: CBE01:23

Methods of Documentation V: CBE

Charting by Exception, or CBE, is a method of documentation used in healthcare, particularly in nursing, that focuses on documenting only significant or abnormal findings rather than recording every detail. This approach aims to streamline the documentation process, improve efficiency, and ensure that healthcare providers can quickly identify deviations from normalcy in patient assessments.
In CBE, healthcare professionals establish predefined standards of practice that define what constitutes...
BJT Amplifiers01:14

BJT Amplifiers

Bipolar Junction Transistors (BJTs) are pivotal components in amplifier circuits, functioning as voltage-controlled current sources in their active region. This characteristic allows them to efficiently control the collector current through variations in the base-emitter voltage. Essentially, BJTs amplify power due to their ability to take a weak input signal and output a much stronger signal.
In BJT amplifier configurations, particularly in common-emitter setups, the transistor's role extends...
Groupthink01:34

Groupthink

When in group settings, we are often influenced by the thoughts, feelings, and behaviors around us. Groupthink is another phenomenon of conformity where modification of the opinions of members in a group aligns with what they believe is the group consensus (Janis, 1972). In such situations, the group often takes action that individuals would not perform outside the group setting because groups make more extreme decisions than individuals do. Moreover, groupthink can hinder opposing trains of...
In- and Out-Groups01:31

In- and Out-Groups

People all belong to a gender, race, age, and social economic group. These groups provide a powerful source of our identity and self-esteem (Tajfel & Turner, 1979) and serve as our in-groups. An in-group is a group that we identify with or see ourselves as belonging to.
Multiple Comparison Tests01:13

Multiple Comparison Tests

Multiple comparison test, abbreviated as MCT, is a post hoc analysis generally performed after comparing multiple samples with one or more tests. An MCT will help identify a significantly different sample among multiple samples or a factor among multiple factors.
It would be easy to compare two samples using a significance alpha level of 0.05. In other words, there is only one sample pair to be compared. However, it would be difficult to identify a significantly different sample if the number...
Decision Making: P-value Method01:09

Decision Making: P-value Method

The process of hypothesis testing based on the P-value method includes calculating the P- value using the sample data and interpreting it.
First, a specific claim about the population parameter is proposed. The claim is based on the research question and is stated in a simple form. Further, an opposing statement to the claim  is also stated. These statements can act as null and alternative hypotheses:  a null hypothesis would be a neutral statement while the alternative hypothesis can have a...

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Related Experiment Video

Updated: Jul 3, 2026

Protective Efficacy and Pulmonary Immune Response Following Subcutaneous and Intranasal BCG Administration in Mice
06:32

Protective Efficacy and Pulmonary Immune Response Following Subcutaneous and Intranasal BCG Administration in Mice

Published on: September 19, 2016

The BCG controversy.

J Verhoef1

  • 1Eijkman-Winkler Institute for Medical and Clinical Microbiology, Heidelberglaan 100, 3584 CX Utrecht, Netherlands.

International Journal of Antimicrobial Agents
|January 1, 1994
PubMed
Summary
This summary is machine-generated.

Bacille Calmette-Guérin (BCG) vaccination for tuberculosis control has a complex history. This review evaluates BCG efficacy, exploring reasons for trial variations and discussing its ongoing use.

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Expression of Exogenous Antigens in the Mycobacterium bovis BCG Vaccine via Non-genetic Surface Decoration with the Avidin-biotin System
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Expression of Exogenous Antigens in the Mycobacterium bovis BCG Vaccine via Non-genetic Surface Decoration with the Avidin-biotin System

Published on: January 31, 2018

Related Experiment Videos

Last Updated: Jul 3, 2026

Protective Efficacy and Pulmonary Immune Response Following Subcutaneous and Intranasal BCG Administration in Mice
06:32

Protective Efficacy and Pulmonary Immune Response Following Subcutaneous and Intranasal BCG Administration in Mice

Published on: September 19, 2016

Expression of Exogenous Antigens in the Mycobacterium bovis BCG Vaccine via Non-genetic Surface Decoration with the Avidin-biotin System
10:11

Expression of Exogenous Antigens in the Mycobacterium bovis BCG Vaccine via Non-genetic Surface Decoration with the Avidin-biotin System

Published on: January 31, 2018

Area of Science:

  • Immunology
  • Infectious Diseases
  • Public Health

Background:

  • Tuberculosis remains a significant global health challenge.
  • Bacille Calmette-Guérin (BCG) is the primary vaccine used for tuberculosis control.
  • Conflicting efficacy data from clinical trials necessitates a critical review.

Purpose of the Study:

  • To review the historical use of BCG vaccination in tuberculosis control.
  • To evaluate the efficacy of BCG based on existing clinical trial data.
  • To explore potential explanations for variability in BCG trial outcomes.

Main Methods:

  • Literature review of historical tuberculosis control strategies.
  • Analysis of published clinical trial results on BCG efficacy.
  • Synthesis of data to identify factors influencing vaccine performance.

Main Results:

  • BCG efficacy against tuberculosis varies considerably across different studies.
  • Geographical location, age at vaccination, and specific BCG strain may influence efficacy.
  • Methodological differences in trial design and data interpretation contribute to outcome discrepancies.

Conclusions:

  • The historical effectiveness of BCG vaccination for tuberculosis control is inconsistent.
  • Understanding variations in BCG efficacy is crucial for optimizing its use.
  • Further research is needed to address the limitations and improve tuberculosis prevention strategies.