id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-103286-k1po7bzb	Jean, K.	Assessing the impact of preventive mass vaccination campaigns on yellow fever outbreaks in Africa : a population-level self-controlled case-series study	2020-07-11		.txt	text/plain	5334	318	50	title: Assessing the impact of preventive mass vaccination campaigns on yellow fever outbreaks in Africa : a population-level self-controlled case-series study Methods: We used the self-controlled case series (SCCS) method to assess the association between the occurrence of yellow fever outbreaks and the implementation of PMVCs at the province level in the African endemic region. Here, we illustrate the use of the SCCS method at the population level by assessing the association between the implementation of PMVCs and the occurrence of yellow fever outbreaks at the province level in the African endemic region between 2005 and 2018. Relying on the Self-Controlled Case Series (SCCS) method, which allows to use each case as its own control and thus eliminates all time invariant confounding, we estimated that PMVC reduces the risk of yellow fever outbreak by 86% (66% to 94%) at the province level.	./cache/cord-103286-k1po7bzb.txt	./txt/cord-103286-k1po7bzb.txt