BCG vaccination in health care providers and the protection against COVID-19.
J Clin Invest
; 131(2)2021 01 19.
Article
in English
| MEDLINE | ID: covidwho-1067000
ABSTRACT
A number of coronavirus disease 2019 (COVID-19) vaccine candidates have shown promising results, but substantial uncertainty remains regarding their effectiveness and global rollout. Boosting innate immunity with bacillus Calmette Guérin (BCG) or other live attenuated vaccines may also play a role in the fight against the COVID-19 pandemic. BCG has long been known for its nonspecific beneficial effects that are most likely explained by epigenetic and metabolic reprogramming of innate immune cells, termed trained immunity. In this issue of the JCI, Rivas et al. add to these arguments by showing that BCG-vaccinated health care providers from a Los Angeles health care organization had lower rates of COVID-19 diagnoses and seropositivity compared with unvaccinated individuals. Prospective clinical trials are thus warranted to explore the effects of BCG vaccination in COVID-19. We posit that beyond COVID-19, vaccines such as BCG that elicit trained immunity may mitigate the impact of emerging pathogens in future pandemics.
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
BCG Vaccine
/
COVID-19
Type of study:
Cohort study
/
Observational study
/
Prognostic study
Topics:
Vaccines
Limits:
Humans
Language:
English
Year:
2021
Document Type:
Article
Affiliation country:
JCI145545
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