5 agosto 2015
Lax state vaccination laws contribute to lower immunization rates and increased outbreaks of preventable diseases—like whooping cough and measles—according to a new study.img src=»http://feeds.feedburner.com/~r/sciencedaily/~4/orVIFlhyOhE» height=»1″ width=»1″ alt=»»/
http://feeds.sciencedaily.com/~r/sciencedaily/~3/orVIFlhyOhE/150805110339.htm
