In the wake of measles outbreaks, California enacted stricter laws governing vaccine exemptions – but loopholes mean many children still go without vaccinations Source: https://www.newscientist.com/article/2222071-californias-strict-vaccination-laws-may-only-have-a-small-effect/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…