id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_msvp3qvhingjrp3xjryxmjzes4	Thomas May	'Clustering of exemptions' as a collective action threat to herd immunity	2003.0	6	.pdf	application/pdf	2783	176	56	In this paper, we examine the phenomenon of 'clustering of exemptions' to childhood vaccination, and Given the growing number of exemptions and the increasing visibility of the antivaccine movement, policy makers must be vigilant for dangerous clustering in order to avoid loss of herd Keywords: Clustering of exemptions; Herd immunity; Vaccination exempted from mandatory vaccination are protected through herd immunity. proportion of people who seek exemption to mandatory vaccination is higher in a particular locality than some individuals to seek exemption to mandatory childhood vaccination, there is a danger of clustering personal views create a willingness to seek exemption to mandatory childhood vaccination often live, as percentage of people exempted from mandatory childhood vaccination is only 0.64% nationally, Utah group" for seeking exemption to vaccination (unlike the students in Schelling's example), but instead will to the population as a whole) to seek exemption to childhood vaccination.	./cache/work_msvp3qvhingjrp3xjryxmjzes4.pdf	./txt/work_msvp3qvhingjrp3xjryxmjzes4.txt