Vaccine Exemptions and Vaccination Coverage in the United States: OAJBS Publishers
Vaccine Exemptions and Vaccination Coverage in the United States by Agnitra Roy Choudhury* in Open Access Journal of Biomedical Science (OAJBS)
The US
has been experiencing a steady decline in vaccination coverage in recent
decades. Declining vaccination coverage not only risks individual health but
also public health by lowering herd immunity. Reasons from anti-vax sentiments
to lack of proper access to vaccines might be responsible for this decline. We
study one potential mechanism that might explain variations in vaccine coverage
in the US: vaccine exemptions laws. Utilizing state variations in vaccine
exemption laws, we study the association between different types of exemptions
on vaccination coverage. We also use Indiana’s change in their vaccine
exemption law as a natural experiment to detect any causal relationship. Using
data from National Immunization Survey, we do not find a strong statistical
relationship between vaccination exemption laws and vaccination coverage. While
the magnitudes of our difference-indifference estimates are consistent with our
theoretical expectations, they are statistically insignificant or weakly
significant. Our study suggests that other factors, such as personal beliefs
regarding vaccine and alternative channels of being exempt, might be
responsible for low coverage rates.
https://biomedscis.com/fulltext/vaccine-exemptions-and-vaccination-coverage-in-the-united-states.ID.000355.php
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