id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-314121-ez62fx9p	de Chaisemartin, C.	BCG vaccination in infancy does not protect against COVID-19. Evidence from a natural experiment in Sweden.	2020-06-23		.txt	text/plain	2902	166	57	Instead, this paper takes advantage of a rare nationwide natural experiment that took place in Sweden in 1975, where discontinuation of newborns BCG vaccination led to a dramatic fall of the BCG coverage rate from 92% to 2% , thus allowing us to estimate the BCG's effect without all the biases associated with cross-country comparisons. found that countries with universal Bacillus Calmette-Guérin (BCG) childhood vaccination policies tend to be less affected by the COVID-19 pandemic, in terms of their number of cases and deaths 3 . This suggests that universal BCG vaccination has no effect on the number of COVID-19 cases per 1000 inhabitants for individuals born in 1975. In this study, we took advantage of a change in vaccination policy in Sweden to investigate the link between BCG vaccination in infancy and Covid-19 cases, hospitalizations and deaths, using a regression discontinuity approach.	./cache/cord-314121-ez62fx9p.txt	./txt/cord-314121-ez62fx9p.txt