id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-024716-1waejlwb	Roy, Soumya	Does the Bacillus Calmette–Guérin vaccine provide protection from COVID-19?	2020-04-30		.txt	text/plain	1977	118	55	Heterologous protection offered by BCG through production of trained immunity, epigenetic reprogramming of monocytes, non-specific activation of NK cells, and increase of pro-inflammatory cytokines (particularly, tumor necrosis factor [TNF]-alpha and interleukin 1 beta) production may be the mechanism behind its crossprotection against the novel coronavirus. The countries where universal BCG vaccination is practiced have a mean COVID-19 positive cases of 131.1 (standard deviation 208.7) per 1 million population with a median of 40. The countries where universal BCG vaccination is practiced have a mean COVID-19 positive cases of 131.1 (standard deviation 208.7) per 1 million population with a median of 40. The countries where universal BCG vaccination is not practiced have a mean COVID-19 deaths of 80.7 (standard deviation 180.8) per 1 million population with a median of 18. The countries where universal BCG vaccination is practiced have a mean COVID-19 positive deaths of 4 (standard deviation 7.6) per 1 million population with a median of 1.	./cache/cord-024716-1waejlwb.txt	./txt/cord-024716-1waejlwb.txt