Related Experiment Video

Updated: May 9, 2025

An Experimental Model to Study Tuberculosis-Malaria Coinfection upon Natural Transmission of Mycobacterium tuberculosis and Plasmodium berghei
09:02

An Experimental Model to Study Tuberculosis-Malaria Coinfection upon Natural Transmission of Mycobacterium tuberculosis and Plasmodium berghei

Published on: February 17, 2014

19.7K

Causality between coronavirus disease 2019 and tuberculosis: A two-sample Mendelian randomization study

Lei Wang1, Chidao Chen, Peng Wang

  • 1College of Medical Imaging, Qilu Medical University, Zibo, Shandong, China.

Medicine
|April 28, 2025
PubMed

Insights

This Mendelian randomization study found no causal link between coronavirus disease 2019 (COVID-19) and tuberculosis (TB). Further research is needed due to limited genetic data, but current evidence suggests no two-way causality.

Area of Science:

  • Epidemiology
  • Genetics
  • Infectious Diseases

Background:

  • An association between COVID-19 and TB has been observed, but the causal relationship remains unclear.
  • Previous studies suggest potential impacts of COVID-19 on TB, necessitating further investigation.
  • Mendelian randomization (MR) offers a method to explore genetic causality between diseases.

Purpose of the Study:

  • To investigate the potential bidirectional causal relationship between COVID-19 and TB.
  • To utilize genetic data to infer causality, minimizing confounding factors.
  • To provide robust evidence regarding the connection between these two significant public health concerns.

Main Methods:

  • Mendelian randomization (MR) analysis was employed.
  • Genome-wide association studies (GWAS) data for COVID-19 and TB were utilized.
  • Five complementary MR methods, including inverse variance weighting and MR-Egger regression, were applied to assess the relationship.

Main Results:

  • No statistically significant causal relationship was found between COVID-19 and TB in either direction.
  • Reverse MR analysis also confirmed the absence of a significant bidirectional causal link.
  • The odds ratio for the association was 1.022 (95% CI: 0.955-1.032, P=0.611).

Conclusions:

  • This bidirectional MR analysis suggests no two-way causality between COVID-19 and TB in the studied European population.
  • The findings contrast with some previous epidemiological observations.
  • Caution is advised in interpreting results due to limitations in available GWAS data for both conditions.

Keywords:
COVID-19Mendelian randomizationtuberculosis

More Related Videos

The MODS method for diagnosis of tuberculosis and multidrug resistant tuberculosis23:06

The MODS method for diagnosis of tuberculosis and multidrug resistant tuberculosis

Published on: August 11, 2008

19.0K
A 3D Human Lung Tissue Model for Functional Studies on Mycobacterium tuberculosis Infection10:10

A 3D Human Lung Tissue Model for Functional Studies on Mycobacterium tuberculosis Infection

Published on: October 5, 2015

18.8K

Related Concept Videos

Causality in Epidemiology01:21

Causality in Epidemiology

Causality or causation is a fundamental concept in epidemiology, vital for understanding the relationships between various factors and health outcomes. Despite its importance, there's no single, universally accepted definition of causality within the discipline. Drawing from a systematic review, causality in epidemiology encompasses several definitions, including production, necessary and sufficient, sufficient-component, counterfactual, and probabilistic models. Each has its strengths and...
154
Pulmonary Tuberculosis I01:29

Pulmonary Tuberculosis I

Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
198
Pulmonary Tuberculosis II01:28

Pulmonary Tuberculosis II

Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
188
Single Nucleotide Polymorphisms-SNPs01:05

Single Nucleotide Polymorphisms-SNPs

A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
13.6K
Pulmonary Tuberculosis III01:31

Pulmonary Tuberculosis III

Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:
257
Pulmonary Tuberculosis IV01:26

Pulmonary Tuberculosis IV

Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
116