COVID-19 and Beyond: Exploring Public Health Benefits from Non-Specific Effects of BCG Vaccination

Bacille Calmette–Guérin (BCG) vaccination, widely used throughout the world to protect against infant tuberculous meningitis and miliary tuberculosis (TB), can provide broad non-specific protection against infectious respiratory diseases in certain groups. Interest in BCG has seen a resurgence withi...

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Main Authors: Kent J. Koster, Hilary L. Webb, Jeffrey D. Cirillo
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Microorganisms
Subjects:
Online Access:https://www.mdpi.com/2076-2607/9/10/2120
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author Kent J. Koster
Hilary L. Webb
Jeffrey D. Cirillo
author_facet Kent J. Koster
Hilary L. Webb
Jeffrey D. Cirillo
author_sort Kent J. Koster
collection DOAJ
description Bacille Calmette–Guérin (BCG) vaccination, widely used throughout the world to protect against infant tuberculous meningitis and miliary tuberculosis (TB), can provide broad non-specific protection against infectious respiratory diseases in certain groups. Interest in BCG has seen a resurgence within the scientific community as the mechanisms for non-specific protection have begun to be elucidated. The impact of the COVID-19 pandemic on nearly every aspect of society has profoundly illustrated the pressure that respiratory infections can place on a national healthcare system, further renewing interest in BCG vaccination as a public health policy to reduce the burden of those illnesses. However, the United States does not recommend BCG vaccination due to its variable effectiveness against adult TB, the relatively low risk of <i>Mycobacterium tuberculosis</i> infection in most of the United States, and the vaccine’s interference with tuberculin skin test reactivity that complicates TB screening. In this review, we explore the broad immune training effects of BCG vaccination and literature on the effects of BCG vaccination on COVID-19 spread, disease severity, and mortality. We further discuss barriers to scheduled BCG vaccination in the United States and how those barriers could potentially be overcome.
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spelling doaj.art-cf1af6ee04314d2faee7d3305d4e0d0e2023-11-22T19:14:37ZengMDPI AGMicroorganisms2076-26072021-10-01910212010.3390/microorganisms9102120COVID-19 and Beyond: Exploring Public Health Benefits from Non-Specific Effects of BCG VaccinationKent J. Koster0Hilary L. Webb1Jeffrey D. Cirillo2Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, 8447 Riverside Pkwy, Bryan, TX 77807, USADepartment of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, 8447 Riverside Pkwy, Bryan, TX 77807, USADepartment of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, 8447 Riverside Pkwy, Bryan, TX 77807, USABacille Calmette–Guérin (BCG) vaccination, widely used throughout the world to protect against infant tuberculous meningitis and miliary tuberculosis (TB), can provide broad non-specific protection against infectious respiratory diseases in certain groups. Interest in BCG has seen a resurgence within the scientific community as the mechanisms for non-specific protection have begun to be elucidated. The impact of the COVID-19 pandemic on nearly every aspect of society has profoundly illustrated the pressure that respiratory infections can place on a national healthcare system, further renewing interest in BCG vaccination as a public health policy to reduce the burden of those illnesses. However, the United States does not recommend BCG vaccination due to its variable effectiveness against adult TB, the relatively low risk of <i>Mycobacterium tuberculosis</i> infection in most of the United States, and the vaccine’s interference with tuberculin skin test reactivity that complicates TB screening. In this review, we explore the broad immune training effects of BCG vaccination and literature on the effects of BCG vaccination on COVID-19 spread, disease severity, and mortality. We further discuss barriers to scheduled BCG vaccination in the United States and how those barriers could potentially be overcome.https://www.mdpi.com/2076-2607/9/10/2120Bacille Calmette–GuérinBCGCOVID-19vaccinepublic health policy
spellingShingle Kent J. Koster
Hilary L. Webb
Jeffrey D. Cirillo
COVID-19 and Beyond: Exploring Public Health Benefits from Non-Specific Effects of BCG Vaccination
Microorganisms
Bacille Calmette–Guérin
BCG
COVID-19
vaccine
public health policy
title COVID-19 and Beyond: Exploring Public Health Benefits from Non-Specific Effects of BCG Vaccination
title_full COVID-19 and Beyond: Exploring Public Health Benefits from Non-Specific Effects of BCG Vaccination
title_fullStr COVID-19 and Beyond: Exploring Public Health Benefits from Non-Specific Effects of BCG Vaccination
title_full_unstemmed COVID-19 and Beyond: Exploring Public Health Benefits from Non-Specific Effects of BCG Vaccination
title_short COVID-19 and Beyond: Exploring Public Health Benefits from Non-Specific Effects of BCG Vaccination
title_sort covid 19 and beyond exploring public health benefits from non specific effects of bcg vaccination
topic Bacille Calmette–Guérin
BCG
COVID-19
vaccine
public health policy
url https://www.mdpi.com/2076-2607/9/10/2120
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